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30 Cards in this Set
- Front
- Back
smooth muscle
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involuntary. located in GI tract, blood vessels, bronchi, bronchioles
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cell membrane of smooth muscle cell
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sarcolemma
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skeletal muscle
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striated. multinucleated. voluntary
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individual cells cannot be distinguished from one another (cardiac muscle)
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synctium
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these divide cardiac tissue into sections
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intercalated discs
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this pumps blood both forward and backward in the worm
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ventral blood vessel
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worms have a _____ circulatory system
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closed
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grasshoppers have a ______ circulatory system
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open
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in the grasshopper: the anterior end of the tube (heart) forms the aorta which opens into the_____
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hemocoel
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fluid that bathes the internal organs
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hemolymph
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exchange of materials occurs between (in grasshoppers)
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hemolymph and cells
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spleen
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produces and stores red and white blood cells and destroys old blood cells
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3 layers of cells of arteries and veins
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innermost: single layer of squamous epithelium (tunica intima)
middle: tunica media. smooth muscle and connective tissue outermost: tunica adventitia. connective tissue |
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capillaries
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vessels that allow gasses, nutrients, and waste products to pass in or out of
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thin sac that a frog's heart lies in
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pericardium
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short thick vessel that emerges from the ventricle and lays across the atria - frog
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conus arteriosus
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triangular thin-walled area that receives blood from the three branches of the venae cavae - frog
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sinus venosus
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three major arteries that arise from each branch of the truncus arteriosus
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carotid arch to the head, systemic arch tot he body, pulmocutaneous arch to the lungs and skin
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directs the flow so that most of the oxygen-poor blood goes to the pulmocutaneous arch
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spiral valve
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lining of the outer suface of a mammal's heart
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epithelium called epicardium
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lining of the inner surface of a mammal's heart
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epithelium called endocardium
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muscle between the two layers
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myocardium
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bulk of the mammal heart
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myocardium
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this separates the left ventricle from the left atrium
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atroventricular valve
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the right AV valve
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tricuspid
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left AV valve
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bicuspid
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separates the aorta from the left ventricle and prevents the backflow of blood back into the heart
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semilunar valve
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semilunar valve
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positioned between the pulmonary artery main trunk and the right ventricle
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semilunar valve
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connects conus arteriosus to ventricle
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high heart rate
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ventricular tachycardia
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