Physiology Test nr.1 - Blood, heart, nervous system physiology

________ carry/carries oxygen to the cells of the body, while the synthesis of these cells is regulated by the hormone ________
Erythrocytes : bone marrow
Bone marrow : erythrocyte
Erythrocytes : erythropoietin
Erythropoietin : erythrocyte
Bone marrow : erythropoietin
Homeostasis is a term which describes the process whereby the body ________
affects the external environment
maintains a constant external environment
maintains a constant internal environment
maintains a variable internal environment
maintains a constant internal and external environment
Cells that carry oxygen in the bloodstream are called ________.
erythrocytes
leukocytes
thrombocytes
lymphocytes
When molecules are passively transported across a membrane, the direction of their movement is dictated by the moleculeʹs tendency to move ________.
from higher to lower energy
from lower to higher energy
out of a cell
into a cell
in both directions; there is no preference
Which of the following correctly lists the components of the central nervous system?
brain and nerves
brain and spinal cord
spinal cord and nerves
brain, spinal cord, and nerves
sympathetic and parasympathetic nervous system
Which cerebral lobe contains the visual cortex?
occipital lobe
temporal lobe
parietal lobe
frontal lobe
medial lobe
Which spinal nerves originate in the neck region?
lumbar nerves
sacral nerves
cervical nerves
thoracic nerves
coccygeal nerve
The autonomic nervous system innervates all the following effector organs and tissues EXCEPT ________.
skeletal muscles
cardiac muscles
endocrine glands
adipose tissues
exocrine glands
The primary site of exchange between blood and interstitial fluid occurs across what type of blood vessel?
arteries
veins
arterioles
venules
capillaries
Which chamber of the heart has the thickest musculature?
right atrium
right ventricle
left atrium
left ventricle
both ventricles have equal thickness and are thicker than the atria
Which of the following is the correct conduction pathway through the heart?
Purkinje fibers; bundle of His; bundle branches; SA node; AV node
SA node; AV node; bundle of His; bundle branches; Purkinje fibers
AV node; SA node; bundle branches; bundle of His; Purkinje fibers
Bundle of His; bundle branches; Purkinje fibers; SA node; AV node
SA node; Purkinje fibers; AV node; bundle of His; bundle branches
Which of the following equations is correct?
cardiac output = stroke volume × heart rate
cardiac output = mean arterial pressure × total peripheral resistance
resistance = (length × radius4) / viscosity
mean arterial pressure = cardiac output × stroke volume
mean arterial pressure = resistance × viscosity
Blood flow velocity is greatest in the ________ and slowest in the ________.
arteries : veins
arterioles : veins
arteries : capillaries
capillaries : arteries
veins : arteries
Which type of leukocyte defends against parasitic infections?
neutrophils
eosinophils
basophils
monocytes
erythrocytes
What is the most abundant class (most %) of white blood cells in normal person?
neutrophils
basophils
eosinophils
monocytes
lymphocytes
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