Neuroscience 2a – Blood Supply to CNS
... Definition of Stroke: A rapidly developing focal disturbance of brain function of presumed having a vascular origin and of more than 24 hours duration Infarction (blockage) (85%) or haemorrhage (burst blood vessel) (15%) Definition of Transient ischaemic attack: rapidly developing focal distur ...
... Definition of Stroke: A rapidly developing focal disturbance of brain function of presumed having a vascular origin and of more than 24 hours duration Infarction (blockage) (85%) or haemorrhage (burst blood vessel) (15%) Definition of Transient ischaemic attack: rapidly developing focal distur ...
Medical Terminology - Porterville College
... tissue – Any new growth of tissue (cancer / tumor) ...
... tissue – Any new growth of tissue (cancer / tumor) ...
Cardiovascular Technologist and Sonographer
... are determined by institutional requirements and concentration(s) studied. Curriculum. Curricula of accredited programs include didactic instruction, laboratory experiences, and patient-based clinical instruction. Suggested areas of instruction are outline in the National Education Curriculum for So ...
... are determined by institutional requirements and concentration(s) studied. Curriculum. Curricula of accredited programs include didactic instruction, laboratory experiences, and patient-based clinical instruction. Suggested areas of instruction are outline in the National Education Curriculum for So ...
Blood Vessels - Dr. Justo Lopez Website
... and common iliac arteries. They have a layer of elastic tissue, internal elastic lamina, at the border between interna and media. They have also an external elastic lamina at the border between media and externa. They expand during systole, recoil during diastole which lessens fluctuations in blood ...
... and common iliac arteries. They have a layer of elastic tissue, internal elastic lamina, at the border between interna and media. They have also an external elastic lamina at the border between media and externa. They expand during systole, recoil during diastole which lessens fluctuations in blood ...
Body Systems
... and associated connective tissue. There are more than 500 muscles in the body. A single muscle consists of cells packaged into bundles, which are highly specialized to contract. The connective tissue that is associated with the muscle envelops the muscle’s individual cells, the bundles, and the musc ...
... and associated connective tissue. There are more than 500 muscles in the body. A single muscle consists of cells packaged into bundles, which are highly specialized to contract. The connective tissue that is associated with the muscle envelops the muscle’s individual cells, the bundles, and the musc ...
Module E Summary - macomb
... blood pressure to normal when blood pressure increases, the neural impulses also increase and which causes the medulla to decrease sympathetic activity, which decreases CO and SVR. d. The baroreceptors are only short-term regulators of blood pressure. If factors causing blood pressure to move away f ...
... blood pressure to normal when blood pressure increases, the neural impulses also increase and which causes the medulla to decrease sympathetic activity, which decreases CO and SVR. d. The baroreceptors are only short-term regulators of blood pressure. If factors causing blood pressure to move away f ...
Posterior Approach and Plating for Tibiotalocalcaneal and
... angiosomes of the foot and ankle originating from the three main arteries and their branches. The 3 branches of the posterior tibial artery each supply distinct portions of the plantar foot. The 2 branches of the peroneal artery supply the anterolateral portion of the ankle and rear foot. The anteri ...
... angiosomes of the foot and ankle originating from the three main arteries and their branches. The 3 branches of the posterior tibial artery each supply distinct portions of the plantar foot. The 2 branches of the peroneal artery supply the anterolateral portion of the ankle and rear foot. The anteri ...
Coronary circulation mgmc
... • Six to seven times CO increased yet the coronary blood flow is increased 3 – 4 times • 3- 4times is the Coronary reserve !! ...
... • Six to seven times CO increased yet the coronary blood flow is increased 3 – 4 times • 3- 4times is the Coronary reserve !! ...
Chapter 33
... other divides to form secondary tissue 4. Cells on the inside of the ring of vascular cambium become secondary xylem (recall that xylem is the inner part of the vascular bundle), and the cells on the outside become secondary phloem 5. As secondary tissues are laid down, the cells of the primary xyle ...
... other divides to form secondary tissue 4. Cells on the inside of the ring of vascular cambium become secondary xylem (recall that xylem is the inner part of the vascular bundle), and the cells on the outside become secondary phloem 5. As secondary tissues are laid down, the cells of the primary xyle ...
The Circulatory System – The Heart
... These systems occur in the kidneys, between hypothalamus and pituitary, and between the intestines and the liver o The Hepatic Portal System The hepatic portal system connects capillaries of digestive organs to the hepatic __________________ of the liver The hepatic portal vein carries blood t ...
... These systems occur in the kidneys, between hypothalamus and pituitary, and between the intestines and the liver o The Hepatic Portal System The hepatic portal system connects capillaries of digestive organs to the hepatic __________________ of the liver The hepatic portal vein carries blood t ...
The Circulatory System – The Heart
... These systems occur in the kidneys, between hypothalamus and pituitary, and between the intestines and the liver o The Hepatic Portal System The hepatic portal system connects capillaries of digestive organs to the hepatic __________________ of the liver The hepatic portal vein carries blood t ...
... These systems occur in the kidneys, between hypothalamus and pituitary, and between the intestines and the liver o The Hepatic Portal System The hepatic portal system connects capillaries of digestive organs to the hepatic __________________ of the liver The hepatic portal vein carries blood t ...
The Circulatory System – The Heart
... interventricular septum toward the apex o Purkinje fibers distribute signals from the apex through the myocardium of the ventricles The Circulatory System – Blood Vessels General Anatomy of Blood Vessels The Vessel Wall consists of multiple layers o The tunica interna lines the inside of the vesse ...
... interventricular septum toward the apex o Purkinje fibers distribute signals from the apex through the myocardium of the ventricles The Circulatory System – Blood Vessels General Anatomy of Blood Vessels The Vessel Wall consists of multiple layers o The tunica interna lines the inside of the vesse ...
The Cardiovascular System
... backward flow of blood. Valvular stenosis is a form of insufficiency in which the cusps arestiffened and the opening is constricted by scar tissue. It frequentlyresults from rheumatic fever. As the valves become scarred and constricted, theheart is overworked by the effort to force blood through the ...
... backward flow of blood. Valvular stenosis is a form of insufficiency in which the cusps arestiffened and the opening is constricted by scar tissue. It frequentlyresults from rheumatic fever. As the valves become scarred and constricted, theheart is overworked by the effort to force blood through the ...
17. Egg Membranes Placenta `10
... Yolk Sac • 1st extra embryonic membrane to form • mediates nutrition • derived from endodermal cells that grow over yolk to enclose it ...
... Yolk Sac • 1st extra embryonic membrane to form • mediates nutrition • derived from endodermal cells that grow over yolk to enclose it ...
Vascular Trauma - St. Luke's
... stab wound to the medial side of upper left arm in close to the axilla, the patient has full radial and brachial pulses and no neurosensory deficits. With regards to arteriography in ruling out arterial trauma what should be the next step in ...
... stab wound to the medial side of upper left arm in close to the axilla, the patient has full radial and brachial pulses and no neurosensory deficits. With regards to arteriography in ruling out arterial trauma what should be the next step in ...
Chapter 4: Tissue Level of Organization
... cell products that perform a limited number of functions. Histology: the study of tissues Interstitial Fluid: the fluid found between cells, within a tissue, or between tissues ...
... cell products that perform a limited number of functions. Histology: the study of tissues Interstitial Fluid: the fluid found between cells, within a tissue, or between tissues ...
Chapter 4: Tissue Level of Organization
... cell products that perform a limited number of functions. Histology: the study of tissues Interstitial Fluid: the fluid found between cells, within a tissue, or between tissues ...
... cell products that perform a limited number of functions. Histology: the study of tissues Interstitial Fluid: the fluid found between cells, within a tissue, or between tissues ...
Embryonic Development
... 1. Fertilization – fusion of pronuclei to form a zygote 2. Cleavage – formation of blastomeres (2-, 4-, 8- and 16-cell stages) 3. Morula 4. Blastula i. Inner cell mass (ICM) ii. Blastocoele (blastocyst cavity) iii. Trophoblast 5. Gastrulation – formation of the trilaminar disk (3 primary germ layers ...
... 1. Fertilization – fusion of pronuclei to form a zygote 2. Cleavage – formation of blastomeres (2-, 4-, 8- and 16-cell stages) 3. Morula 4. Blastula i. Inner cell mass (ICM) ii. Blastocoele (blastocyst cavity) iii. Trophoblast 5. Gastrulation – formation of the trilaminar disk (3 primary germ layers ...
Cardiovascular System_Lecture III - Medical
... The "capillary bed" is the network of capillaries supplying an organ. The more metabolically active the cells, the more capillaries it will require to supply nutrients. The capillary bed usually carries no more than 25% of the amount of blood it could contain, although this amount can be increased t ...
... The "capillary bed" is the network of capillaries supplying an organ. The more metabolically active the cells, the more capillaries it will require to supply nutrients. The capillary bed usually carries no more than 25% of the amount of blood it could contain, although this amount can be increased t ...
4E continued
... lungs it is ________________ and ______________________ of impurities. The bronchi divide to supply each ________________ of the lungs. Is the tissue of the bronchi more like that of the trachea of alveoli? 9. The change from the conducting zone to the respiratory zone is defined by the presence of ...
... lungs it is ________________ and ______________________ of impurities. The bronchi divide to supply each ________________ of the lungs. Is the tissue of the bronchi more like that of the trachea of alveoli? 9. The change from the conducting zone to the respiratory zone is defined by the presence of ...
BIO 193 Mock Exam
... d) Seedless vascular plants contain both xylem and phloem for long distance transport e) The gametophyte of seedless vascular plants is generally smaller and less conspicuous than the sporophyte 10) Which of the following statements is TRUE in regards to the fern life cycle? a) The sperm do not have ...
... d) Seedless vascular plants contain both xylem and phloem for long distance transport e) The gametophyte of seedless vascular plants is generally smaller and less conspicuous than the sporophyte 10) Which of the following statements is TRUE in regards to the fern life cycle? a) The sperm do not have ...
Extraembryonic membranes
... The chorion cushions the embryo against mechanical shocks. The allantois functions as a disposal sac for uric acid. ...
... The chorion cushions the embryo against mechanical shocks. The allantois functions as a disposal sac for uric acid. ...
The Circulatory System:
... • 7. Blood passes through the aortic semi-lunar valve and enters the aorta. • 8. Blood travels to all the cells of the body through the capillaries, dropping off O2 and nutrients and picking up CO2 and waste. • 9. Blood is collected by the veins to be returned to the heart. ...
... • 7. Blood passes through the aortic semi-lunar valve and enters the aorta. • 8. Blood travels to all the cells of the body through the capillaries, dropping off O2 and nutrients and picking up CO2 and waste. • 9. Blood is collected by the veins to be returned to the heart. ...
Vascular remodelling in the embryo
Vascular remodelling is a process which begins at day 21 of human embryogenesis, when an immature heart begins contracting, pushing fluid through the early vasculature. This first passage of fluid initiates a signal cascade based on physical cues including shear stress and circumferential stress, which is necessary for the remodelling of the vascular network, arterial-venous identity, angiogenesis, and the regulation of genes through mechanotransduction. This embryonic process is necessary for the future stability of the mature vascular network.Vasculogenesis is the initial establishment of the components of the blood vessel network, or vascular tree. This is dictated by genetic factors and has no inherent function other than to lay down the preliminary outline of the circulatory system. Once fluid flow begins, biomechanical and hemodynamic inputs are applied to the system set up by vasculogenesis, and the active remodelling process can begin.Physical cues such as pressure, velocity, flow patterns, and shear stress are known to act on the vascular network in a number of ways, including branching morphogenesis, enlargement of vessels in high-flow areas, angiogenesis, and the development of vein valves. The mechanotransduction of these physical cues to endothelial and smooth muscle cells in the vascular wall can also trigger the promotion or repression of certain genes which are responsible for vasodilation, cell alignment, and other shear stress-mitigating factors. This relationship between genetics and environment is not clearly understood, but researchers are attempting to clarify it by combining reliable genetic techniques, such as genetically-ablated model organisms and tissues, with new technologies developed to measure and track flow patterns, velocity profiles, and pressure fluctuations in vivo.Both in vivo study and modelling are necessary tools to understand this complex process. Vascular remodelling is pertinent to wound healing and proper integration of tissue grafts and organ donations. Promoting an active remodelling process in some cases could help patients recover faster and retain functional use of donated tissues. However, outside of wound healing, chronic vascular remodelling in the adult is often symptomatic of cardiovascular disease. Thus, increased understanding of this biomedical phenomenon could aid in the development of therapeutics or preventative measures to combat diseases such as atherosclerosis.