tissues and skin

Question 1

what is the basic structural unit of compact bone

Answer 1

osteon

Question 2

this pigment secreted by specialized cells in the skin are capable of absorbing ultraviolet light

Answer 2

melanin

Question 3

this type of membrane lines a body cavity that does not open directly to the exterior and covers the organs contained in that body cavity

Answer 3

serous membrane

Question 4

albinism is the inherited inability to produce

Answer 4

melanin

Question 5

the extra cellular matrix of connective tissue consist of

Answer 5

protein fibers and ground substance

Question 6

goosebumps are caused by

Answer 6

contraction of the arrector pili muscles

Question 7

this layer of the epidermis is composed of a single row of cuboidal or columnar keratinocytes

Answer 7

stratum basale

Question 8

which of the following structures found in the skin plays an important role in thermoregularion

Answer 8

sweat glands

Question 9

this layer of skin is composed mainly of dense irregular connective tissue containing collagen and elastic fibers

Answer 9

dermis

Question 10

epithelial tissue
is used as a covering of body surfaces
is used as a lining of body cavities and hollow organs
is used to form glands
usually has a free surface that interacts with the external environment

Answer 10

all of these are correct

Question 11

in which of the following locations would you most likely find transitional epithelial cells

Answer 11

lining of the urinary bladder

Question 12

you stepped on a nail. list the sequential layers of the epidermis that the nail penetrated through to finally reach the dermis

Answer 12

corneum, lucidum, granulosum, spinosum, basale

Question 13

this layer of the skin of composed of keratinized stratified squamous epithelium

Answer 13

epidermis

Question 14

which of the following is not a connect tissue
bone
blood
cartilage
tendons
epidermis

Answer 14

epidermis

Question 15

these types of cell junctions anchor adjacent cells together and resist their separation during contractile activities

Answer 15

adherens junctions and desmosomes

Question 16

which of the following is not one of the main tissue types found in the human body

Answer 16

myocardial

Question 17

which of the following types of membranes would you expect to find goblet cells

Answer 17

mucous membranes

Question 18

which of the following is a term used to describe an increase in the size of the tissue that is the result of an increase in size, not number, of cells in that tissue

Answer 18

hypertrophy

Question 19

the main function of dense regular connective tissue is

Answer 19

providing strong attachment between structures like muscle and bone

Question 20

which of the following types of tissues is made up of small spindle shaped cells and is commonly found in the walls of hollow organs

Answer 20

smooth muscle

Question 21

the two principal types of cells found in nervous tissues are

Answer 21

neuroglial and neurons

Question 22

the hair root plexus functions to

Answer 22

assist hair in touch perception

Question 23

which of the following best describes events that lead to the tanning of skin that occurs after exposure of the skin to the suns UV radiation?

Answer 23

UV radiation stimulates increased production of melanin by melanosomes

Question 24

this type of multicellular exocrine gland has a branched rounded secretory part attached to a single unbranched duct and is found mainly in sebaceous glands

Answer 24

simple branched acinar gland

Question 25

which condition results from androgens inhibiting hair growth in genetically predisposed adults

Answer 25

male pattern baldness

Question 26

spongy bone lacks

Answer 26

osteons

Question 27

which of the following is classified as loose connective tissue

Answer 27

areolar connective tissue

Question 28

this type of exocrine gland is a simple, coiled tubular gland that is found throughout the entirety of the skin

Answer 28

eccrine sweat gland

Question 29

this type of exocrine gland accumulates its secretory product in the cytosol of its cells until the cell ruptures and becomes part of the secretory product

Answer 29

holocrine

Question 30

simple tubular exocrine glands have

Answer 30

a straight tubular secretory portion attached to a single unbranched duct

Question 31

which of the following types of tissues contains multinucleated cells whose movements are under voluntary control

Answer 31

skeletal muscle

Question 32

constant exposure of skin to friction stimulates the formation of a callus which is the thickening of the ______ of the epidermis

Answer 32

stratum corneum

Question 33

the fine nonpigmented hair that covers the body of the fetus

Answer 33

lanugo

Question 34

which of the following types of cells are considered excitable cells because they are able to produce electrical signals

Answer 34

myofibers and neurons

Question 35

this is a mixture of triglycerides, cholesterol , proteins, and inorganic salts

Answer 35

sebum

Question 36

the epidermal cell has a role in immunity and disease resistance

Answer 36

langerhans cells

Question 37

this component of connective tissue is found between the cells and fibers, and functions to support and bind cells in the tissue together

Answer 37

ground substance

Question 38

which of the following conditions is characterized by excessive body hair caused by tumors in adrenal glands, testes or ovaries

Answer 38

hirsutism

Question 39

which of the following terms refers to paleness of the skin such as seen in patients with shock or anemia

Answer 39

pallor

Question 40

which of the following is a common characteristic of thin skin

Answer 40

presence of sebaceous glands

Question 41

which of the following types of membrane found in the human body DOES NOT contain epithelial tissue

Answer 41

synovial membrane

Question 42

which of the following is a polysaccharide commonly found in the ground substance of connective tissues

Answer 42

hyaluronic acid

Question 43

which of the following is a term used to describe a decrease in the size of cells within a tissue or organ that ultimately results in reduction in the overall size of the tissue or organ

Answer 43

atrophy