Which of the following terms identifies the point of contact between the nerve ending and the muscle fiber?
Insertion site
Origin site
Neuromuscular junction
interneuron
The Correct Answer is C
a: Insertion site - This refers to the attachment point of a muscle tendon to a bone, not the point of contact between nerve and muscle.
b: Origin site - This refers to the attachment point of a muscle tendon to a stationary bone, not the neuromuscular junction.
c. Neuromuscular junction: The neuromuscular junction is the specialized synapse between a motor neuron and a muscle fiber. It is where the nerve impulse is transmitted from the motor neuron to the muscle fiber, resulting in muscle contraction
d: Interneuron - Interneurons are neurons that transmit signals between other neurons; they are not directly involved in the neuromuscular junction.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
a. Prothrombin: This is a protein involved in blood clotting, not in maintaining colloid osmotic pressure.
b. Globulins: These are involved in immune responses and transportation of substances but are not the primary proteins for colloid osmotic pressure.
c. Fibrinogen: This is a clotting factor that helps in blood coagulation, not in colloid osmotic pressure.
d. Albumin: Albumin is the main plasma protein responsible for maintaining colloid osmotic pressure, which helps to keep fluid within the blood vessels.
Correct Answer is D
Explanation
a. Insulin and glucagon: These hormones are produced by the pancreas and regulate blood glucose levels, not involved in the fight or flight response.
b. Dehydroepiandrosterone and estradiol: These are adrenal and gonadal hormones involved in sexual function and other roles, but not in the immediate stress response.
c. Ghrelin and kisspeptin: Ghrelin is involved in hunger signaling, and kisspeptin in reproductive hormone signaling, neither are involved in the stress response.
d. Epinephrine and norepinephrine: These are the primary hormones released by the adrenal medulla in response to stress, preparing the body for a fight or flight response by increasing heart rate, blood pressure, and blood glucose levels.
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