Articular cartilage is composed of what type of cartilage?
a. Elastic
b. Hyaline
c. Fibrocartilage
Answer: b. Hyaline
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Which is not an involuntary part of the swallowing reflex?
A. The epiglottis closes off the top of the trachea. B. The tongue rolls chewed food into a bolus and pushes it to the oropharynx. C. Muscles pull the pharynx upward toward the food. D. The tongue presses against the uvula and soft palate.
________ cells enable the immune system to respond quickly and robustly if the same antigen is encountered a second time
A) Secondary B) Primary C) Memory D) Responder E) Transponder
The cremaster muscles are important to the integrity of the male reproductive system. Which of the following is true about their function?
A) They contract to allow ejaculation. B) They contract to move the sperm along in the duct. C) They are responsible for penile erection. D) They regulate the temperature of the testes.
What two factors determine the pressure gradient that drives circulation?
A) cardiac output and peripheral resistance B) heart rate and stroke volume C) diastolic pressure and systolic pressure D) blood vessel radius and blood vessel length