Which of the following glands is both a endocrine gland and lymphatic organ??
A) ?Thymus
B) ?Thyroid
C) ?Pineal
D) ?Pancreas
A
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The potential difference across the cell membrane is due to the unequal distribution of ________ across the membrane
A) carbohydrate molecules B) water molecules C) cations and anions D) acids and bases E) phospholipids and proteins
Which of the following is an effector?
A. An afferent neuron B. An efferent neuron C. A gland D. A sense organ E. An interneuron
Endochondral ossification ______, whereas intramembranous ossification ______
A) inhibits osteoblast activity; activates osteoclast activity B) activates osteoclasts; inhibits osteoblast activity C) replaces hyaline cartilage; replaces undifferentiated connective tissue D) forms bone in broad, flat areas of the skull; occurs in the limbs
Which long bone structure is correctly matched with its description or function?
a. epiphysis; the end of a bone that is composed of compact bone only b. articular cartilage; fibrocartilage located at the ends of a bone c. periosteum; responsible for growth in bone width d. perforating fibers; blood vessels that penetrate the bone.