Heart and Circulation PPT File
... The Heart • A pump that pushes blood around the body • Located in the mediastinum (between the 2 lungs – slightly more on the left) • About the size of closed human fist • Enclosed by a membrane – pericardium (holds the heart in place, but also allows it to move as it beats, prevents it from overst ...
... The Heart • A pump that pushes blood around the body • Located in the mediastinum (between the 2 lungs – slightly more on the left) • About the size of closed human fist • Enclosed by a membrane – pericardium (holds the heart in place, but also allows it to move as it beats, prevents it from overst ...
Walls of the Heart
... they do not come from the brain. They are created in special tissue in the atrium called the pacemaker. They then follow a trail through the heart to the Purkinje fibers, which extend throughout the ventricles. When the impulses reach the Purkinje fibers, the ventricles contract and push blood out o ...
... they do not come from the brain. They are created in special tissue in the atrium called the pacemaker. They then follow a trail through the heart to the Purkinje fibers, which extend throughout the ventricles. When the impulses reach the Purkinje fibers, the ventricles contract and push blood out o ...
The Cardiovascular System
... The atria (sing. Atrium) exhibit thin flaccid walls correspondingto their light workload—all they do is pump blood into theventricles immediately below. They are separated from eachother by a wall, the interatrial septum.A thicker wall, the interventricularseptum, separates the right and left ventri ...
... The atria (sing. Atrium) exhibit thin flaccid walls correspondingto their light workload—all they do is pump blood into theventricles immediately below. They are separated from eachother by a wall, the interatrial septum.A thicker wall, the interventricularseptum, separates the right and left ventri ...
MCHENRY WESTERN LAKE COUNTY EMS SYSTEM OPTIONAL
... The deoxygenated blood from the heart enters the lungs through the pulmonary valve as seen in the human heart diagram. This process is called pulmonary circulation. From the pulmonic valve, the blood travels to the pulmonary artery into the tiny capillary vessels of the lungs. The oxygen present in ...
... The deoxygenated blood from the heart enters the lungs through the pulmonary valve as seen in the human heart diagram. This process is called pulmonary circulation. From the pulmonic valve, the blood travels to the pulmonary artery into the tiny capillary vessels of the lungs. The oxygen present in ...
Document
... • Primary bronchi lead to to each lung (left and right) • Secondary (lobar) bronchi lead to each lung lobe (3 on right and 2 on left) ...
... • Primary bronchi lead to to each lung (left and right) • Secondary (lobar) bronchi lead to each lung lobe (3 on right and 2 on left) ...
System+Coloring+Book
... sheath - the fatty substance that surrounds and protects some nerve fibers node of Ranvier - one of the many gaps in the myelin sheath - this is where the action potential occurs during saltatory conduction along the axon nucleus - the organelle in the cell body of the neuron that contains the genet ...
... sheath - the fatty substance that surrounds and protects some nerve fibers node of Ranvier - one of the many gaps in the myelin sheath - this is where the action potential occurs during saltatory conduction along the axon nucleus - the organelle in the cell body of the neuron that contains the genet ...
FETAL CIRCULATION
... the pulmonary trunk artery with the aorta. This allows most blood to bypass the lungs, although some blood still enters the right and left pulmonary arteries. There is considerable resistance to blood flow into the lungs because they are collapsed. ...
... the pulmonary trunk artery with the aorta. This allows most blood to bypass the lungs, although some blood still enters the right and left pulmonary arteries. There is considerable resistance to blood flow into the lungs because they are collapsed. ...
Chapter 10 The heart Structures
... • Blockages in these arteries can be done using a special dye test where a small catheter is inserted into an artery usually in the groin and passed up towards the heart. X ray dye then is injected to look for blockages ...
... • Blockages in these arteries can be done using a special dye test where a small catheter is inserted into an artery usually in the groin and passed up towards the heart. X ray dye then is injected to look for blockages ...
Unit 1 Lecture 2
... ventricle and the aorta. These two valves prevent blood flow back into the heart after ventricular contraction. Because there are no valves between the atria and the veins some of the arterial blood is forced back into the veins, but this is minimal due to compression of atrial muscles as the atria ...
... ventricle and the aorta. These two valves prevent blood flow back into the heart after ventricular contraction. Because there are no valves between the atria and the veins some of the arterial blood is forced back into the veins, but this is minimal due to compression of atrial muscles as the atria ...
Introduction to Biomechanics for engineering students
... (erythrocytes) contain haemoglobin that carries oxygen to the tissues in one way and carbon dioxide on the return. The transport capacity will of course decrease if the number of red corpuscles is reduced from the normal value but if there are too many of them, the viscosity of the blood increase an ...
... (erythrocytes) contain haemoglobin that carries oxygen to the tissues in one way and carbon dioxide on the return. The transport capacity will of course decrease if the number of red corpuscles is reduced from the normal value but if there are too many of them, the viscosity of the blood increase an ...
Structure and Function of the Normal Heart and Blood
... the alveolar-capillary membrane. Oxygenated blood then enters the left atrium from the lungs via the four pulmonary veins. Blood flows across the open mitral valve and into the left ventricle during diastole and is ejected across the aortic valve and into the aorta during systole. The blood reaches ...
... the alveolar-capillary membrane. Oxygenated blood then enters the left atrium from the lungs via the four pulmonary veins. Blood flows across the open mitral valve and into the left ventricle during diastole and is ejected across the aortic valve and into the aorta during systole. The blood reaches ...
Exam 1 Study Guide - Dr. Stuart Sumida
... Which of the following is not a characteristic of hemoglobin? a) It makes up the majority of the mass of a red blood cell. b) It binds oxygen (O2) preferentially over all other gases. c) It can bind carbon dioxide when it is not binding oxygen. d) It has different forms depending on the ontogenetic ...
... Which of the following is not a characteristic of hemoglobin? a) It makes up the majority of the mass of a red blood cell. b) It binds oxygen (O2) preferentially over all other gases. c) It can bind carbon dioxide when it is not binding oxygen. d) It has different forms depending on the ontogenetic ...
Introduction to Biomechanics for engineering students
... (erythrocytes) contain haemoglobin that carries oxygen to the tissues in one way and carbon dioxide on the return. The transport capacity will of course decrease if the number of red corpuscles is reduced from the normal value but if there are too many of them, the viscosity of the blood increase an ...
... (erythrocytes) contain haemoglobin that carries oxygen to the tissues in one way and carbon dioxide on the return. The transport capacity will of course decrease if the number of red corpuscles is reduced from the normal value but if there are too many of them, the viscosity of the blood increase an ...
Anterior - Mr. Morrison's Biology Class
... oxygen, which passes through the capillary walls and into the surrounding tissue. • The tissue releases its waste products, like carbon dioxide, which passes through the capillary walls and into the red blood cells. ...
... oxygen, which passes through the capillary walls and into the surrounding tissue. • The tissue releases its waste products, like carbon dioxide, which passes through the capillary walls and into the red blood cells. ...
The Blood
... erythroid stem cell→ erythroblasts cell division→ smaller cells loosing nucleus and gaining hemoglobin → reticulocyte→ mature RBC Reticulocytes contain remnants of cell organelles Their presence in excess in the peripheral blood (>2%) indicates excessive RBC destruction The normal number of RBCs is ...
... erythroid stem cell→ erythroblasts cell division→ smaller cells loosing nucleus and gaining hemoglobin → reticulocyte→ mature RBC Reticulocytes contain remnants of cell organelles Their presence in excess in the peripheral blood (>2%) indicates excessive RBC destruction The normal number of RBCs is ...
Lab #4 - Notes to Instructor
... are the very smallest, microscopic vessels where the exchange of nutrients and wastes with surrounding tissues actually takes place walls consist of a single layer of endothelial cells only. These cells are loosely joined to each other thus facilitating FILTRATION of plasma OUTWARD (to becomes I ...
... are the very smallest, microscopic vessels where the exchange of nutrients and wastes with surrounding tissues actually takes place walls consist of a single layer of endothelial cells only. These cells are loosely joined to each other thus facilitating FILTRATION of plasma OUTWARD (to becomes I ...
The Structure and Function of Blood
... Composition of Blood: White Blood Cells • White blood cells — AKA: Leukocytes or WBCs — Largest sized blood cells — Lowest numbers in the blood (4,500 – 11,000 per microliter) — Formed in the bone marrow and some in lymph glands — Primary cells of the immune system — Fights disease and foreign inva ...
... Composition of Blood: White Blood Cells • White blood cells — AKA: Leukocytes or WBCs — Largest sized blood cells — Lowest numbers in the blood (4,500 – 11,000 per microliter) — Formed in the bone marrow and some in lymph glands — Primary cells of the immune system — Fights disease and foreign inva ...
2-Arterial Blood pressure
... Cardiovascular Physiology Function of cardiovascular system: 1-Transport and distribute essential substance to the tissues. 2-Remove by-product of metabolism. 3-Regulate body temperature. 4-Humoral communication throughout the body. 5-Adjustment of O2 and nutrient supply in different physiology stat ...
... Cardiovascular Physiology Function of cardiovascular system: 1-Transport and distribute essential substance to the tissues. 2-Remove by-product of metabolism. 3-Regulate body temperature. 4-Humoral communication throughout the body. 5-Adjustment of O2 and nutrient supply in different physiology stat ...
Chapter 5 Lecture Notes
... sensation, movement, and thought, and controls the body’s voluntary and involuntary activity. The central nervous system consists of the brain and spinal cord and controls consciousness (reticular activating system). The peripheral nervous system consists of sensory and motor nerves. Sensory nerves ...
... sensation, movement, and thought, and controls the body’s voluntary and involuntary activity. The central nervous system consists of the brain and spinal cord and controls consciousness (reticular activating system). The peripheral nervous system consists of sensory and motor nerves. Sensory nerves ...
Arteries
... *FIRST, Label the following Diagram on the Major Arteries by using p. 642. (Note: The following numbers correspond to the numbers on the diagram.) 1. Aorta describe – largest artery of the body carries blood from – left ventricle carries blood to- body divided into how many parts- four: ascending, a ...
... *FIRST, Label the following Diagram on the Major Arteries by using p. 642. (Note: The following numbers correspond to the numbers on the diagram.) 1. Aorta describe – largest artery of the body carries blood from – left ventricle carries blood to- body divided into how many parts- four: ascending, a ...
Blood Basics
... clotting factors, and proteins such as antibodies to fight infection. • PLATELETS (Thrombocytes) – The clotting factors that are carried in the plasma; they clot together in a process called coagulation to seal a wound and prevent a loss of blood. ...
... clotting factors, and proteins such as antibodies to fight infection. • PLATELETS (Thrombocytes) – The clotting factors that are carried in the plasma; they clot together in a process called coagulation to seal a wound and prevent a loss of blood. ...
Blood and Immunity
... Blood, Haemostasis and Immunity Blood provides the means for which the body’s cells receive vital nutrients and oxygen and dispose of their metabolic wastes. Blood has a role in homeostasis of body fluids, and in defence from invading pathogens or external damage. Task Complete the description of th ...
... Blood, Haemostasis and Immunity Blood provides the means for which the body’s cells receive vital nutrients and oxygen and dispose of their metabolic wastes. Blood has a role in homeostasis of body fluids, and in defence from invading pathogens or external damage. Task Complete the description of th ...
Lymphatic System The lymphatic system works to protect the body
... red blood cells, platelets, and microorganisms such as bacteria. Red blood cells have a lifespan of 120 days, and then are removed from circulation by the white pulp of the spleen. Hemoglobin is recycled from the red blood cells, and what is left over will ultimately be converted into bilirubin. The ...
... red blood cells, platelets, and microorganisms such as bacteria. Red blood cells have a lifespan of 120 days, and then are removed from circulation by the white pulp of the spleen. Hemoglobin is recycled from the red blood cells, and what is left over will ultimately be converted into bilirubin. The ...
APPLIED ANATOMY OF LOWER LIMB BLOOD VESSELS
... – Arises from lateral part of dorsal venous arch – Passes posterior to lateral malleolus – Asends up back of leg – Drains into popliteal vein ...
... – Arises from lateral part of dorsal venous arch – Passes posterior to lateral malleolus – Asends up back of leg – Drains into popliteal vein ...
applied anatomy of lower limb blood vessels
... – Arises from lateral part of dorsal venous arch – Passes posterior to lateral malleolus – Asends up back of leg – Drains into popliteal vein ...
... – Arises from lateral part of dorsal venous arch – Passes posterior to lateral malleolus – Asends up back of leg – Drains into popliteal vein ...
Blood
Blood is a bodily fluid in humans and other animals that delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste products away from those same cells. When it reaches the lungs, gas exchange occurs when carbon dioxide is diffused out of the blood into the pulmonary alveoli and oxygen is diffused into the blood. This oxygenated blood is pumped to the left hand side of the heart in the pulmonary vein and enters the left atrium. From here it passes through the mitral valve, through the ventricle and taken all around the body by the aorta. Blood contains antibodies, nutrients, oxygen and much more to help the body work.In vertebrates, it is composed of blood cells suspended in blood plasma. Plasma, which constitutes 55% of blood fluid, is mostly water (92% by volume), and contains dissipated proteins, glucose, mineral ions, hormones, carbon dioxide (plasma being the main medium for excretory product transportation), and blood cells themselves. Albumin is the main protein in plasma, and it functions to regulate the colloidal osmotic pressure of blood. The blood cells are mainly red blood cells (also called RBCs or erythrocytes), white blood cells (also called WBCs or leukocytes) and platelets. The most abundant cells in vertebrate blood are red blood cells. These contain hemoglobin, an iron-containing protein, which facilitates oxygen transport by reversibly binding to this respiratory gas and greatly increasing its solubility in blood. In contrast, carbon dioxide is almost entirely transported extracellularly dissolved in plasma as bicarbonate ion.Vertebrate blood is bright red when its haemoglobin is oxygenated and dark red when it is deoxygenated. Some animals, such as crustaceans and mollusks, use hemocyanin to carry oxygen, instead of hemoglobin. Insects and some mollusks use a fluid called hemolymph instead of blood, the difference being that hemolymph is not contained in a closed circulatory system. In most insects, this ""blood"" does not contain oxygen-carrying molecules such as hemoglobin because their bodies are small enough for their tracheal system to suffice for supplying oxygen.Jawed vertebrates have an adaptive immune system, based largely on white blood cells. White blood cells help to resist infections and parasites. Platelets are important in the clotting of blood. Arthropods, using hemolymph, have hemocytes as part of their immune system.Blood is circulated around the body through blood vessels by the pumping action of the heart. In animals with lungs, arterial blood carries oxygen from inhaled air to the tissues of the body, and venous blood carries carbon dioxide, a waste product of metabolism produced by cells, from the tissues to the lungs to be exhaled.Medical terms related to blood often begin with hemo- or hemato- (also spelled haemo- and haemato-) from the Greek word αἷμα (haima) for ""blood"". In terms of anatomy and histology, blood is considered a specialized form of connective tissue, given its origin in the bones and the presence of potential molecular fibers in the form of fibrinogen.