Term
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Definition
| supplementary circulatory pumps seen in hagfish (lack cardiac muscle) |
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Definition
The section of the aortic arch delivering blood to the
gills (Fishes) |
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Term
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Definition
| is the reconnection of two streams that previously branched out, such as blood vessels or leaf veins. |
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Definition
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| drain blood from the head region |
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Definition
| Evolution of aortic arches. Pg.467 |
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Definition
supply system that carries blood away from the heart and out to body tissues.
High in Oxygen(pulmonary is not) |
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Term
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Definition
| Very small arteries and veins |
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Term
| Atrioventricular (AV node) |
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Definition
| is a part of the electrical control system of the heart that coordinates the top of the heart. It electrically connects atrial and ventricular chambers |
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Definition
| chamber in which blood enters the heart |
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Definition
form between the atrium and ventricle
normal flow, the valves are pushed open
blood reversal immediately forces them closed |
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Definition
| is the resting heart rate of under 60 beats per minute |
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Definition
is a pear shaped chamber that functions as a capacitor, maintaining continuous blood flow into the gill arches.
if its elastic walls lack cardiac
muscle |
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Definition
| the tiny vessels that lie between veins and arteries |
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Term
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Definition
| organ system that passes nutrients (such as amino acids, electrolytes and lymph), gases, hormones, blood cells, etc. to and from cells in the body to help fight diseases, stabilize body temperature and pH, and to maintain homeostasis |
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Definition
is a small cluster of sensory cells associated with capillaries,
plays a role in sensing the gas content or pressure of the
blood as well as having some endocrine functions |
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Definition
| Where anterior and posterior cardinal unite and open into sinus venosus |
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Term
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Definition
adult form of bulbus cordis
contractile walls possess cardiac
muscle |
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Term
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Definition
perfuse the heart wall, usually only
the outer part of the myocardium |
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Term
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Definition
which delivers blood to the skin along the
dorsal and lateral body wall...Leaves pulmocutaneous artery |
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Term
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Definition
constitutes the lowest pressure
within the blood vessels, which is reached between heartbeats.
is the period of time when the heart refills with blood |
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Term
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Definition
blood passes through the heart twice during each circuit(Amniotes)
heart->lungs->back to the heart->out
to the systemic tissues->back to the heart a second time |
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Term
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Definition
| Dorsal section of the aortic arch carrying blood away from gills (Fishes) |
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Term
| Sinoatrial node (SA node) |
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Definition
| Contraction of the entire heart usually begins within a restricted region in the sinus venosus called the pacemaker |
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Term
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Definition
| neuron like fibers that are modified cardiac muscle cells (part of AV node) |
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Term
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Definition
The luminal walls of the bulbus arteriosus are thrown into leaflets, collectively forming this
Prevents reverse blood flow |
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Term
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Definition
pattern in which blood passes only
once through the heart during each complete circuit (Fishes)
heart ->gills ->systemic tissues->heart |
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Term
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Definition
fluid component and can be thought of as
the ground substance of blood, a special connective tissue. |
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Term
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Definition
third formed element in the blood.
They release factors that produce a cascade of chemical events leading to the formation of a clot, or thrombus, at sites of tissue damage. |
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Term
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Definition
Carry blood toward the heart
Usually low in oxygen (pulmonary is not) |
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Term
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Definition
intermost layer of arteries and veins
includes the lining of endothelial cells that face the lumen |
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Term
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Definition
Outermost layer of arteries and veins
composed mostly of fibrous connective
tissue |
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Term
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Definition
Middle layer of arteries and viens
Some smooth muscle contributes to this in large arteries, but elastic fibers predominate.
In large veins, this middle layer contains mostly smooth muscle with almost no elastic fibers. |
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Term
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Definition
are a second major cellular constituent of the formed elements in blood
White blood cells-defend the body from infection and disease. |
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Term
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Definition
| is a blood vessel connecting the pulmonary artery to the aortic arch. It allows most of the blood from the right ventricle to bypass the fetus's fluid-filled non-functioning lungs. |
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Term
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Definition
| it allows oxygenated blood from the placenta to bypass the liver. in fetus |
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Term
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Definition
the fused endocardial tubes form the endothelial lining
of the heart
innermost layer of tissue that lines the chambers of the heart |
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Term
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Definition
which carry blood
into the ventral region of the head from ventral aorta |
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Term
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Definition
A connecting vessel between the bases of
the left and right aortic arches in crocodilians. |
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Term
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Definition
an opening between right and left atria, allows
most blood entering the right atrium to flow directly to the left
atrium without first passing through the lungs |
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Term
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Definition
are the cellular components of blood.
Red blood cells, or erythrocytes, are one cell type of the |
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Term
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Definition
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Term
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Definition
transports absorbed
nutrients directly from the digestive tract to the liver for
storage or processing of many end products of digestion |
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Term
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Definition
which carry blood forward into the head and usually penetrate the braincase to supply the brain
From anterior dorsal aorta |
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Term
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Definition
The fluid carried by the lymphatic vessels
It
consists mostly of water and a few dissolved substances such
as electrolytes and proteins, but it contains no red blood cells. |
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Term
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Definition
not true hearts because they lack cardiac
muscle, but striated muscles in their walls slowly develop
pulses of pressure to drive the lymph. (fishes) |
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Term
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Definition
partner with the circulatory system. It
aids fluid return to the circulatory system and is engaged in several special functions.
Structurally, there are two components of the vessels and tissue. |
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Term
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Definition
| the middle and thickest layer of the heart wall |
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Term
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Definition
vascular pathway that begins in
one set of capillaries and runs to another without coursing
through the heart in between |
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Term
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Definition
| Drain posterior part of body |
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Term
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Definition
which return blood from the
embryo’s body |
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Term
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Definition
| little rings of smooth muscle restricting the entrance to the capillary beds. |
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Term
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Definition
| Drain anterior part of body |
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Term
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Definition
The last arch (VI) loses its connection to the
dorsal aorta because the ductus arteriosus closes |
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Term
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Definition
| artery branched from pulmocutaneous artery that eneters the lungs |
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Term
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Definition
brings arteries and veins close together, allowing heat exchange between them near the brain
heat block provides a mechanism for absorbing excess
heat and preventing harmful thermal extremes in the brain |
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Term
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Definition
the ventricles
of the heart contract, the peak force |
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Term
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Definition
| refers to a heart rate that exceeds the normal range. A heart rate over 100 beats per minute |
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Term
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Definition
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Term
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Definition
fluid that has escaped from the blood
capillaries to surrounding cells |
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Term
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Definition
The inner wall of the
myocardium, especially of the ventricle, often forms projecting
cones of muscle |
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Term
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Definition
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Term
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Definition
| vessels open and restore or enlarge in size of the lumen |
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Term
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Definition
| Blood leaving the heart first enters an unpaired |
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Term
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Definition
| ventricle is one of two large chambers that collect and expel blood received from an atrium towards the peripheral beds within the body and lungs |
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