The inferior tip of the spinal cord is the ________ part.
A. sacral
B. coccygeal
C. thoracic
D. cervical
E. lumbar
Answer: B
Anatomy & Physiology
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Which of the following substances found in sustentacular cells may be the active hormones that promote sperm cell formation?
A. IgA and IgG B. sustentaculum and gubernaculum C. dihydrotestosterone and estrogen D. androgen-binding protein and testosterone E. estrogen and progesterone
Anatomy & Physiology
Sympathetic nerve fibers originate in the ____________________ horn of the thoracic and lumbar regions of the spinal cord
Fill in the blank(s) with correct word
Anatomy & Physiology
What bone-associated structure in panel C is indicated by the arrow?
osteon epiphyseal plate periosteum trabeculae
Anatomy & Physiology
Which of the following is a primary endocrine organ?
A) testes B) heart C) thyroid gland D) pineal gland
Anatomy & Physiology