In the slow block to polyspermy, sperm penetration releases an inflow of __________, which in turn stimulates the cortical reaction.
A. Cl-
B. K+
C. Na+
D. Ca2+
E. Mg2+
E. Mg2+
Anatomy & Physiology
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Chemically, a radioactive isotope behaves the same way as the stable isotopes of a given element.
Answer the following statement true (T) or false (F)
Anatomy & Physiology
Which layer of the epidermis is found in only a few areas of the body?
A. stratum lucidum B. stratum spinosum C. stratum granulosum D. stratum corneum E. stratum basale
Anatomy & Physiology
Fibrous joints are classified as ________.
A) pivot, hinge, and ball and socket B) symphysis, sacroiliac, and articular C) hinge, saddle, and ellipsoidal D) sutures, syndesmoses, and gomphoses
Anatomy & Physiology
The tracheal rings are composed of
A) dense collagenous connective tissue. B) hyaline cartilage. C) fibrocartilage. D) elastic cartilage. E) loose or areolar connective tissue.
Anatomy & Physiology