Cerebrospinal fluid is secreted by choroid plexuses in the ________ ventricles and reabsorbed by arachnoid villi in the ________
A) lateral, and third; superior sagittal sinus
B) lateral, third, and fourth; superior sagittal sinus
C) lateral; central canal of the spinal cord
D) lateral, third, and fourth; central canal of the spinal cord
B
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Which of the following is incorrect pertaining to the inguinal canal?
A) It transmits an indirect inguinal hernia. B) It is traversed prenatally by the processes vaginalis, which later occludes. C) It is traversed prenatally by the primordial testis. D) Its roof is formed by the inguinal ligament. E) Its superficial opening is the superficial (external) inguinal ring.
Which of the following examples listed below illustrates homeostasis maintained by a negative feedback?
A) Production of vitamin D initiated by the suns UV light striking the skin. B) Formation of cerumen wax to deter insects from entering the ear. C) Changes in the response of the hair follicle to dihydrotestosterone (DHT). D) Thickening of epidermis to form a callus in places where the skin is exposed to friction.
Which of the following parts of the nervous system control skeletal muscle?
A) sensory B) parasympathetic C) autonomic D) somatic E) sympathetic.
Olfactory receptors are located in the mucosa in the nasal cavity
Indicate whether the statement is true or false