Which muscle responds to increased parasympathetic stimulation?
A dilator pupillae
B. Sphincter pupillae
C. Ciliary body
D. Levator palpebrae superioris
B. Sphincter pupillae
Anatomy & Physiology
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Oncogenes ________.
A. stimulate apoptosis B. often stimulate cyclin-dependent kinases that speed up the G1 phase C. prevent formation of cancer cells D. block the ability of cyclins to stimulate cell division
Anatomy & Physiology
Which portion of the sperm cell is most involved with penetration of the female sex cell?
A. nucleus B. acrosome C. midpiece D. tail E. centriole
Anatomy & Physiology
Microtubules and microfilaments are the primary components of the ________.
A. plasma membrane B. cytoskeleton C. cytosol D. nucleus
Anatomy & Physiology
The layers of bone tissue immediately deep to the periosteum are:
A) circumferential lamellae. B) lacunae. C) concentric lamellae. D) trabeculae.
Anatomy & Physiology