What are the two types of cholinergic receptors?
a. nicotinic and muscarinic
b. ACh and ATP
c. alpha and beta
d. epinephrine and norepinephrine
e. sodium and potassium
a
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MALT us an example of which classification of lymphatic tissue?
a. Unencapsulated lymphatic tissues b. Encapsulated lymphatic organs c. Lymphatic cells d. Lymph conducting vessels
Which of the following would be an example of higher-level control of autonomic function?
A) gagging on food that does not appeal to you B) a violent coughing attack in response to an irritant C) increased heart rate when you see a person you fear D) dilation of the pupils when you enter a dark room E) increased salivation when you smell food that appeals to you
A person works an office job that requires them to be in a sitting position for 10 hours a day. They go home and sit until they go to bed. This person never exercises and rarely gets up to move around after being seated. Their joints begin to constantly feel stiff and painful. On a physiological level, what has happened to cause these symptoms?
A. Disuse of the joint causes ossification of the fibrocartilage, creating arthritic joints. B. Lack of movement hinders blood from moving through the vessels of the synovial membrane, which starves the ligaments of nutrients and causes them to lose elasticity. C. Being stuck in the same position for long periods of time causes the ligaments to physically decay, stiffening the joints. D. Lack of movement drives the synovial membranes to stop producing synovial fluid, which then causes friction to generate upon movement of the joints.
As blood flows from the right ventricle to the left atria it must pass through which of the following valves?
a. tricuspid valve b. bicuspid valve c. aortic semilunar valve d. pulmonary semilunar valve