Physiology V01 - Introduction to Human Physiology » Fall 2021 » Lecture Quiz 3

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Question #1
Which of the following specifically targets (prevents) the replication of viruses?
A.   interferon
B.   human defensin
C.   melanin
D.   sweat
E.   sebum
Question #2
When the body temperature decreases, the hypothalamus stimulates the sweat glands and dilates the skin blood vessels.
A.   FALSE
B.   TRUE
Question #3
What type of cells are responsible for producing granulation tissue during skin repair?
A.   neutrophils
B.   fibroblasts
C.   mast cells
D.   macrophages
E.   monocytes
Question #4
Hairs grow for an average of 2-6 years during the anagen phase.
A.   FALSE
B.   TRUE
Question #5
Which of the following is not true of apocrine sweat glands?
A.   their function (in humans) is not known
B.   they are not active until puberty
C.   they are holocrine glands
D.   located in the axillary and anogenital areas
E.   their secretions contain proteins and lipids
Question #6
The osteoid of bone matrix is composed of calcium phosphate.
A.   TRUE
B.   FALSE
Question #7
Which of the following steps of intramembranous ossification is not correct?
A.   the cells become trapped in spaces (lacunae) and becomes osteocytes
B.   mesenchymal cells become osteoclasts forming an ossification center
C.   the matrix is formed by the secretion of osteoid and calcium phosphate
D.   spicules of bone form trabeculae producing spongy bone
E.   osteoblasts underneath the periosteum form compact bone
Question #8
During intracartilagenous ossification, ossification begins within the hyaline cartilage of the embryonic skeleton.
A.   TRUE
B.   FALSE
Question #9
Long bones increase in length because of bone production by osteoblasts on the diaphyseal side of the epiphyseal plate and cartilage production by chondrocytes on the opposite side.
A.   FALSE
B.   TRUE
Question #10
What is the function of epidermal growth factor (EGF)?
A.   stimulates keratin synthesis
B.   promotes cell division within the stratum germinativum
C.   stimulates development and repair of the epidermis and stimulates secretion by the epithelial glands
D.   promotes cell division within the stratum germinativum, stimulates keratin synthesis, stimulates development and repair of the epidermis and stimulates secretion by the epithelial glands
Question #11
Which of the following is not true of bone remodeling?
A.   it is controlled by the hormones PTH and calcitonin
B.   bone is reabsorbed by osteoclasts
C.   it is the process of bone deposition and reabsorption that occur during adulthood
D.   the osteoid portion of the matrix is digested by metabolic acids
E.   bone deposition occurs when bone is injured or stressed

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