QUESTIONS COMPLETE ANSWERS
BUNDLED RESOURCE
●● Right AV valve has____
Answer: three cusps (TRIcuspid valve)
●● Left AV valve has____
Answer: two cusps (BIcuspid)
●● Left AV valve also called
Answer: biscupid valve or mitral valve
●● Right AV valve also called
Answer: Tricuspid valve
●● Cardiac Output (CO)
Answer: The amount of blood ejected by each ventricle in 1 minute
●● Exercise makes the heart____
Answer: work harder which increases cardiac output
,●● At the beginning of exercise______in the muscles & joints send
signals to the cardiac centers
Answer: proprioceptors
●● Sympathetic output from the cardiac centers then _____ cardiac
output
Answer: increases
●● As exercise progresses, muscular activity ______ venous return
Answer: increases
●● The preload increases on the right ventricle and then the left ventricle
as more blood flows through the _______
Answer: Pulmonary circuit and reaches the left heart
●● Sustained exercise causes
Answer: hypertrophy
●● Blood vessels further from the heart
Answer: lowest BP
●● Blood vessels closest to heart
, Answer: highest BP
●● Tunica Interna (Tunica)
Answer: Innermost; consists of a layer of simple squamous epithelium
called endothelium.
Bound to a supendothelial layer of areolar connective tissue
●● Tunica Media
Answer: Middle; consists primarily of smooth muscle with a framework
of elastic connective tissue and contains collagen.
Thickest layer
●● Tunica Externa (Adventitia)
Answer: Outermost; consists of areolar connective tissue with elastice
and collagen fibers
●● Capillaries only consist of______and______
Answer: Basement membrane; endothelium layer
●● Veins and venules are the only blood vessels that contain
Answer: Valves to prevent back flow
●● Tunica media will be thicker in arteries than veins because