Question

multiple choice. choose the one alternative that best completes the statement or answers the question.

1. a patient is diagnosed with leukocytosis if they have more than ______ wbcs/μl.

a)1,000
b) 5,000
c) 11,000
d) 5,000,000

1. the hypodermis is characterized by an abundance of which tissue?

a) statified squamous epithelium
b) nervous tissue
c) dense irregular connective tissue
d) smooth muscle
e)adipose tissue

1. beta-globulins transport ____, whereas gamma-globulins are ____.

a) antibodies, lipids
b) clotting factors, hormones
c) iron ions, antibodies
d) lipids, heavy metals
e) oxygen, clotting proteins

1. which of the following best describes the composition of the dermis?

a) collagen and dead keratinocytes
b) elastic fibers and melanocytes
c) elastic fibers and langerhans cells
d) collagen and fibroblasts
e) collagen and living keratinocytes

1. ______ is formed from the secretions of glands in the external ear canal.

a) cerumen
b) sebum
c) sweat
d) mucus

1. a normal hematocrit is ______ of the total blood volume.

a) less than 1%
b) 98.5%
c) 45%
d) 55%

1. a person with type ab blood has ______ rbc antigen(s).

a) anti-a
b) anti-b
c) a and b
d) anti-a and anti-b
e) no

1. which of the following is not normally found in plasma?

a) fibrinogen
b) starch
c) na⁺
d) albumin
e) hormones

1. mitosis in the ______ accounts for growth of the nail.

a) nail matrix
b) nail body
c) nail plate
d) free edge

1. the \abcd rule\ for recognizing early signs of malignant melanoma refers to the following characteristics of the lesion:

a) aspect, border irregularity, color, and distance
b) area, border irregularity, color, and density
c) aspect, brightness, color, and distance
d) asymmetry, brightness, color, and diameter
e) asymmetry, border irregularity, color, and diameter

1. compared to the young, elderly individuals have ______ epidermal dendritic skin cells.

a) fewer
b) more

Explanation:

1. Leukocytosis is defined as a white blood cell count above the normal upper limit (11,000 WBCs/μL).
2. The hypodermis (subcutaneous layer) is primarily made of adipose tissue for insulation and energy storage.
3. Beta-globulins transport iron ions; gamma-globulins are antibodies (immune proteins).
4. The dermis is composed of collagen fibers (structural support) and fibroblasts (cells that produce connective tissue components).
5. Cerumen (earwax) is secreted by glands in the external ear canal.
6. A normal hematocrit (percentage of RBCs in blood) is approximately 45% for adults.
7. Type AB blood has both A and B antigens on its red blood cells.
8. Plasma contains proteins, electrolytes, and hormones, but starch is not a normal component.
9. Nail growth occurs via mitosis in the nail matrix, the living tissue under the nail root.
10. The ABCD rule for melanoma stands for Asymmetry, Border irregularity, Color variation, and Diameter (>6mm).
11. Epidermal dendritic (Langerhans) cells decrease in number with age, reducing immune function in the skin.

Answer:

1. C) 11,000
2. E) Adipose tissue
3. C) iron ions, antibodies
4. D) Collagen and fibroblasts
5. A) Cerumen
6. C) 45%
7. C) A and B
8. B) Starch
9. A) nail matrix
10. E) asymmetry, border irregularity, color, and diameter
11. A) fewer