What physiological or morphological characteristics prevent a giraffe from developing cerebral edema while drinking?
A) One way valves in the artery leading to the head
B) Low blood pressure
C) Highly elastic blood vessels near the brain
D) Low heart rate
Answer: C
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The epidermis
a. has an outermost keratinized layer that is tough, airtight, and fairly waterproof. b. contains melanocytes, keratinocytes, Langerhans cells, Granstein cells, and transient T lymphocytes. c. has a richly vascularized inner layer. d. both (a) and (b) above. e. all of these answers.
The hepatic portal system:
a. is the second capillary system b. receives venous blood from the digestive system c. helps maintain glucose homeostasis d. all of the above
Match the nerve or plexus with its appropriate description.Obturator nerve
A. Innervates the anterior and lateral muscles of the leg B. Innervates muscles of the pelvic floor C. Innervates the muscles that adduct the thigh D. Branches to form the medial and lateral plantar nerves E. Innervates the iliopsoas, sartorius, and quadriceps femoris
Which rare condition results in individuals who possess both ovarian and testicular tissues?
A) phimosis B) cryptorchidism C) hermaphroditism D) orchiditis