Question

question 8
1 pts
gel - like structure embedded with the tips of cochlear hair cells.
basilar membranetectorial membranescala vestibulescala tympanitympanic membrane
question 9
1 pts
the hypophyseal portal veins are primarily located in the
infundibulum.pars intermedia.tuber cinereum.pars nervosa.
question 10
1 pts
endocrine gland of the thorax that is also important in immune function.
pineal glandneurohypophysist hymus glandparathyroid glandadheohypophysis

Explanation:

• Question 8: The tectorial membrane is a gel - like structure. Cochlear hair cells (which are involved in hearing) have their tips embedded in the tectorial membrane. The basilar membrane is involved in the mechanical transduction of sound but is not gel - like. The scala vestibule and scala tympani are fluid - filled chambers in the cochlea. The tympanic membrane is the eardrum.
• Question 9: The hypophyseal portal veins are located in the infundibulum. The infundibulum connects the hypothalamus to the pituitary gland, and the hypophyseal portal system is crucial for the transport of hypothalamic hormones to the anterior pituitary (pars distalis, which is related but not the location of the portal veins). The pars intermedia is a part of the pituitary with different functions, the tuber cinereum is part of the hypothalamus (not the main location of the portal veins), and the pars nervosa is the posterior pituitary (not related to the portal veins).
• Question 10: The thymus gland is located in the thorax. It is an endocrine gland (produces thymosin which aids in T - cell maturation) and is important in immune function (as it is the site of T - cell development). The pineal gland is in the brain (not thorax). The neurohypophysis (posterior pituitary) and adenohypophysis (anterior pituitary) are not in the thorax. The parathyroid gland is near the thyroid (in the neck, not thorax).

Answer:

• Question 8: B. tectorial membrane
• Question 9: A. infundibulum
• Question 10: C. thymus gland