CRRM1.9 - The Heart in Situ
... o Posteriorly around the veins, superior and inferior vena cava and pulmonary veins These reflections create blind-ending spaces – sinuses: ...
... o Posteriorly around the veins, superior and inferior vena cava and pulmonary veins These reflections create blind-ending spaces – sinuses: ...
Patterns of blood flow in episcleral vessels studied by low
... and by their fluorescence intensity. Arteries usually perfused earlier than veins, and with higher flow velocity. Twenty-five of 40 arteries flowed away from scleral perforations close to the limbus. All 8 veins drained away from the limbus. The communication between two arteries may be demonstrated ...
... and by their fluorescence intensity. Arteries usually perfused earlier than veins, and with higher flow velocity. Twenty-five of 40 arteries flowed away from scleral perforations close to the limbus. All 8 veins drained away from the limbus. The communication between two arteries may be demonstrated ...
LabPracticalIBio242LGRCC
... The white/light pink cells found clustered in the center of this photomicrograph are part of a larger endocrine/exocrine gland that secretes enzymes into the small intestine. This gland is found attached to the inferior border of the stomach. ...
... The white/light pink cells found clustered in the center of this photomicrograph are part of a larger endocrine/exocrine gland that secretes enzymes into the small intestine. This gland is found attached to the inferior border of the stomach. ...
Module 3. The Blood Supply of the Brain
... individuals it may provide the entire arterial supply for the lower two-thirds of the cord. The vertebral and basilar arteries supply the brainstem and cerebellum. Perhaps the most important thing to recognize about the brainstem’s blood supply is just how variable the vessels can be in size and pos ...
... individuals it may provide the entire arterial supply for the lower two-thirds of the cord. The vertebral and basilar arteries supply the brainstem and cerebellum. Perhaps the most important thing to recognize about the brainstem’s blood supply is just how variable the vessels can be in size and pos ...
Skeletal System
... cardiac muscle cells are tethered to each other by crisscrossing connective tissue fibers arranged in spiral or circular bundles These interlacing bundles effectively link all parts of the heart together ...
... cardiac muscle cells are tethered to each other by crisscrossing connective tissue fibers arranged in spiral or circular bundles These interlacing bundles effectively link all parts of the heart together ...
Elbow and Hand
... ◦ Called the carrying angle for the way the forearm angles away from the body when something is carried ...
... ◦ Called the carrying angle for the way the forearm angles away from the body when something is carried ...
Type of joint
... nutrition to disk and articular surfaces . The capsule and ligaments The capsule consists of a vascular dense collagenous membrane that seals the joint space and provides passive stability. The lateral aspect of capsule is thickened to form the temporomandibular ligament, this ligament with styloman ...
... nutrition to disk and articular surfaces . The capsule and ligaments The capsule consists of a vascular dense collagenous membrane that seals the joint space and provides passive stability. The lateral aspect of capsule is thickened to form the temporomandibular ligament, this ligament with styloman ...
12-Aortic Arches2009-01-26 02:4412.5 MB
... week, an extensive network of blood vessels is formed throughout the embryonic body The heart begins to beat on 21st or 22nd day, and blood begins to circulate. This makes the CVS to be the first system in the body to reach the functional state The embryonic heartbeat can be detected ultrasonographi ...
... week, an extensive network of blood vessels is formed throughout the embryonic body The heart begins to beat on 21st or 22nd day, and blood begins to circulate. This makes the CVS to be the first system in the body to reach the functional state The embryonic heartbeat can be detected ultrasonographi ...
Human Anatomy Worksheet II Due
... 9. Describe in detail the path of blood flow through the heart, including all chambers and valves. 10. Describe the structure and function of the heart’s fibrous skeleton. 11. Sketch the general scheme of coronary circulation. 12. Describe the histology of blood vessels, including the names of the t ...
... 9. Describe in detail the path of blood flow through the heart, including all chambers and valves. 10. Describe the structure and function of the heart’s fibrous skeleton. 11. Sketch the general scheme of coronary circulation. 12. Describe the histology of blood vessels, including the names of the t ...
The Lymphatic System
... • Lymphatic vessels then lead to larger vessels that unite with the veins in the thorax. • Lymphatic capillaries – microscopic, closed-ended tubes that extend from interstitial (“between tissues”) spaces forming complex networks. – They resemble the blood vessels, except they don’t carry blood. ...
... • Lymphatic vessels then lead to larger vessels that unite with the veins in the thorax. • Lymphatic capillaries – microscopic, closed-ended tubes that extend from interstitial (“between tissues”) spaces forming complex networks. – They resemble the blood vessels, except they don’t carry blood. ...
Chapter 21 Blood Vessels
... • Measuring blood pressure with sphygmomanometer – Korotkoff sounds are heard while taking pressure – systolic blood pressure from ventricular contraction – diastolic blood pressure during ventricular contraction • provides information about systemic vascular resistance ...
... • Measuring blood pressure with sphygmomanometer – Korotkoff sounds are heard while taking pressure – systolic blood pressure from ventricular contraction – diastolic blood pressure during ventricular contraction • provides information about systemic vascular resistance ...
Arterial supply and venous drainage of the choroid plexus of the
... along their whole length anteriorly, form an obtuse angle with its apex directed rostrally. The plexuses exhibit frond-like capillary processes on both surfaces, located along the attached and free margins of the plexus. On the basis of plexus shape and vascular patterns, several regions could be di ...
... along their whole length anteriorly, form an obtuse angle with its apex directed rostrally. The plexuses exhibit frond-like capillary processes on both surfaces, located along the attached and free margins of the plexus. On the basis of plexus shape and vascular patterns, several regions could be di ...
Fetal Membranes
... keratinization of the skin the pathway for passage of water and solutes in tissue fluid from the fetus to the amniotic cavity is through the skin ...
... keratinization of the skin the pathway for passage of water and solutes in tissue fluid from the fetus to the amniotic cavity is through the skin ...
Chapter 21: Immune System
... – detect changes in blood levels of O2, CO2, and H+ (hypoxia, hypercapnia or acidosis ) – causes stimulation of cardiovascular center – increases sympathetic stimulation to arterioles & veins – vasoconstriction and increase in blood pressure ...
... – detect changes in blood levels of O2, CO2, and H+ (hypoxia, hypercapnia or acidosis ) – causes stimulation of cardiovascular center – increases sympathetic stimulation to arterioles & veins – vasoconstriction and increase in blood pressure ...
08 - folding
... raise the incidence of these anomalies. Critical developmental events occur during the first 3 weeks. Such as development of the nervous & cardiovascular systems. The 4th to 8th weeks of development constitute most of the embryonic period. All major external & internal structures are established dur ...
... raise the incidence of these anomalies. Critical developmental events occur during the first 3 weeks. Such as development of the nervous & cardiovascular systems. The 4th to 8th weeks of development constitute most of the embryonic period. All major external & internal structures are established dur ...
Occlusion of the left superior vena cava-coronary
... offer an anatomic possibility of biventricular repair. A slow, progressive fall of oxygen saturation values due to various causes may develop in the postoperative course in these patients. The principal causes of the cyanosis observed in these patients are the development of collateral venous circul ...
... offer an anatomic possibility of biventricular repair. A slow, progressive fall of oxygen saturation values due to various causes may develop in the postoperative course in these patients. The principal causes of the cyanosis observed in these patients are the development of collateral venous circul ...
The heart develops from mesoderm
... Development of the chambers of the heart The common atrium will be divided by an interatrial septum to form the right atrium and the left atrium. The sinus venosus will be form the smooth posterior part of the right atrium. The embryonic ventricle develops into the adult or definitive left ventricle ...
... Development of the chambers of the heart The common atrium will be divided by an interatrial septum to form the right atrium and the left atrium. The sinus venosus will be form the smooth posterior part of the right atrium. The embryonic ventricle develops into the adult or definitive left ventricle ...
Peripheral Vasculature Average Vessel Diameter
... INTENDED USE/INDICATIONS FOR USE: The Interlock Fibered IDC Occlusion System is a modified interlocking detachable coil indicated to obstruct or reduce rate of blood flow in the peripheral vasculature. This device is not intended for neurovascular use. CONTRAINDICATIONS: None known. GENERAL PRECAUTI ...
... INTENDED USE/INDICATIONS FOR USE: The Interlock Fibered IDC Occlusion System is a modified interlocking detachable coil indicated to obstruct or reduce rate of blood flow in the peripheral vasculature. This device is not intended for neurovascular use. CONTRAINDICATIONS: None known. GENERAL PRECAUTI ...
Organs from the mesoderm
... time when the medullary folds appeal' outlined upon the SUl'face, the lateral sheets of mesoderm have extended ventrally and to a certain extent have fused in the mid-ventral line. The cells of each sheet of mesoderm are arrang'ecl over the greater part of their extent into two layers; but on each s ...
... time when the medullary folds appeal' outlined upon the SUl'face, the lateral sheets of mesoderm have extended ventrally and to a certain extent have fused in the mid-ventral line. The cells of each sheet of mesoderm are arrang'ecl over the greater part of their extent into two layers; but on each s ...
DERIVATIVES OF THE ENDODERMAL GERM LAYER
... Between the chorionic and decidual plates are the intervillous spaces, which are filled with maternal blood. They are derived from lacunae in the syncytiotrophoblast and are lined with syncytium of fetal origin. The villous trees grow into the intervillous blood lakes During the fourth and fifth mon ...
... Between the chorionic and decidual plates are the intervillous spaces, which are filled with maternal blood. They are derived from lacunae in the syncytiotrophoblast and are lined with syncytium of fetal origin. The villous trees grow into the intervillous blood lakes During the fourth and fifth mon ...
Ultrasound-Guided Right Internal Jugular Vein Access
... transducer slightly in either the caudad or cephalad direction. It should be noted that blue does not necessarily mean vein and red does not necessarily mean artery. Colors map directionality of blood in addition to velocity. Therefore, depending on the transducer angle, venous flow rates, and machi ...
... transducer slightly in either the caudad or cephalad direction. It should be noted that blue does not necessarily mean vein and red does not necessarily mean artery. Colors map directionality of blood in addition to velocity. Therefore, depending on the transducer angle, venous flow rates, and machi ...
Structure and Molecular Composition of the Coracoclavicular
... within ligaments is a sign of degeneration or age related change, we believe in the possibility that fat may promote stress dissipation or act as a mechanosensory organ at entheses. Since we found streaks of fat within all CCL near its enthesis, containing vessels, we believe, that strain on ligamen ...
... within ligaments is a sign of degeneration or age related change, we believe in the possibility that fat may promote stress dissipation or act as a mechanosensory organ at entheses. Since we found streaks of fat within all CCL near its enthesis, containing vessels, we believe, that strain on ligamen ...
Innocent Heart Murmur - Congenital and Children`s Heart Centre
... stethoscope. Such a murmur may indicate that there is something wrong with the heart. However, it is more likely to be associated with a normal heart and this type is called an innocent murmur, also known as a functional, benign, flow or Still’s murmur. There are several types of innocent murmur. Th ...
... stethoscope. Such a murmur may indicate that there is something wrong with the heart. However, it is more likely to be associated with a normal heart and this type is called an innocent murmur, also known as a functional, benign, flow or Still’s murmur. There are several types of innocent murmur. Th ...
3.Lecturenotes(Placenta and fetal membrane)
... Note: At the end of the 3rd month, the amnion has expanded to such an extent that it comes in contact with the chorion, thereby obliterating the chorion cavity. The yolk sac then usually shrinks and is gradually obliterated. D. Yolk Sac - Early in gestation the yolk sac may provide some limited nutr ...
... Note: At the end of the 3rd month, the amnion has expanded to such an extent that it comes in contact with the chorion, thereby obliterating the chorion cavity. The yolk sac then usually shrinks and is gradually obliterated. D. Yolk Sac - Early in gestation the yolk sac may provide some limited nutr ...
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.