The ovarian cycle consists of the _______ phase, the _______ and the _____ phase. （ ） A: follicular B: ovulation C: proliferative D: luteal

Not contained in primary follicles A: Primary oocyte B: Follicular cell C: Zona pellucida D: Cumulus

The most common signs of acute conjunctivitis is () A: Conjunctival congestion B: Conjunctival edema C: Papillary hyperplasia D: Follicular formation

The follicular cells of the thyroid follicles become ( )shaped when they are in an active state.() A: squamous B: cuboidal C: irregular D: columnar E: oval

Muscles called ( ) are responsible for making hairs stand on end A: follicular erectors B: pelage adductors C: pelage abductors D: vibrissal erectors E: arrector pili

降钙素是由下列哪种细胞分泌： A: Parafollicular cell B: follicular epithelial cell C: chief cell D: acidophilic cell E: chromaffin cell