BIOS 255 Exam 2 Questions With Correct
Answers 100% Verified
Valves ensure______ -CORRECT ANSWER-
One-way flow of blood through the heart
Right AV valve has____ -CORRECT ANSWER-
three cusps (TRIcuspid valve)
Left AV valve has____ -CORRECT ANSWER-
two cusps (BIcuspid)
Left AV valve also called -CORRECT ANSWER-
biscupid valve or mitral valve
Right AV valve also called -CORRECT ANSWER-
Tricuspid valve
Cardiac Output (CO) -CORRECT ANSWER-
The amount of blood ejected by each ventricle in 1 minute
,Exercise makes the heart____ -CORRECT ANSWER-
work harder which increases cardiac output
At the beginning of exercise______in the muscles & joints send signals to the cardiac centers -
CORRECT ANSWER-
proprioceptors
Sympathetic output from the cardiac centers then _____ cardiac output-CORRECT ANSWER-
increases
As exercise progresses, muscular activity ______ venous return -CORRECT ANSWER-
increases
The preload increases on the right ventricle and then the left ventricle as more blood flows
through the _______ -CORRECT ANSWER-Pulmonary circuit and reaches the left heart
Sustained exercise causes -CORRECT ANSWER-
hypertrophy
Blood vessels further from the heart -CORRECT ANSWER-
lowest BP
, Blood vessels closest to heart -CORRECT ANSWER-
highest BP
Tunica Interna (Tunica) -CORRECT ANSWER-
Innermost; consists of a layer of simple squamous epithelium called endothelium.
Bound to a supendothelial layer of areolar connective tissue
Tunica Media -CORRECT ANSWER-
Middle; consists primarily of smooth muscle with a framework of elastic connective tissue and
contains collagen.
Thickest layer
Tunica Externa (Adventitia) -CORRECT ANSWER-
Outermost; consists of areolar connective tissue with elastice and collagen fibers
Capillaries only consist of______and______ -CORRECT ANSWER-
Basement membrane; endothelium layer
Veins and venules are the only blood vessels that contain -CORRECT ANSWER-
Valves to prevent back flow
Answers 100% Verified
Valves ensure______ -CORRECT ANSWER-
One-way flow of blood through the heart
Right AV valve has____ -CORRECT ANSWER-
three cusps (TRIcuspid valve)
Left AV valve has____ -CORRECT ANSWER-
two cusps (BIcuspid)
Left AV valve also called -CORRECT ANSWER-
biscupid valve or mitral valve
Right AV valve also called -CORRECT ANSWER-
Tricuspid valve
Cardiac Output (CO) -CORRECT ANSWER-
The amount of blood ejected by each ventricle in 1 minute
,Exercise makes the heart____ -CORRECT ANSWER-
work harder which increases cardiac output
At the beginning of exercise______in the muscles & joints send signals to the cardiac centers -
CORRECT ANSWER-
proprioceptors
Sympathetic output from the cardiac centers then _____ cardiac output-CORRECT ANSWER-
increases
As exercise progresses, muscular activity ______ venous return -CORRECT ANSWER-
increases
The preload increases on the right ventricle and then the left ventricle as more blood flows
through the _______ -CORRECT ANSWER-Pulmonary circuit and reaches the left heart
Sustained exercise causes -CORRECT ANSWER-
hypertrophy
Blood vessels further from the heart -CORRECT ANSWER-
lowest BP
, Blood vessels closest to heart -CORRECT ANSWER-
highest BP
Tunica Interna (Tunica) -CORRECT ANSWER-
Innermost; consists of a layer of simple squamous epithelium called endothelium.
Bound to a supendothelial layer of areolar connective tissue
Tunica Media -CORRECT ANSWER-
Middle; consists primarily of smooth muscle with a framework of elastic connective tissue and
contains collagen.
Thickest layer
Tunica Externa (Adventitia) -CORRECT ANSWER-
Outermost; consists of areolar connective tissue with elastice and collagen fibers
Capillaries only consist of______and______ -CORRECT ANSWER-
Basement membrane; endothelium layer
Veins and venules are the only blood vessels that contain -CORRECT ANSWER-
Valves to prevent back flow
