1. Which response serves to decrease body temperature if body temperature increases above its normal range?...

1. Which response serves to decrease body temperature if body temperature increases above its normal range?

Question 2 options:

	constriction of blood vessels in the dermis
	increased contraction of skeletal muscles
	increased secretion of sweat from sweat glands

2.Where in the epidermis is new cell division most likely to occur?

	stratum basale
	stratum corneum
	stratum granulosum
	stratum lucidum

3. How long is a keratinocyte typically part of the epidermis before it is sloughed off of the apical surface?

Question 8 options:

	2-3 days
	10-20 days
	40-50 days
	about six months

Which of the following correctly describes the root and the shaft of a hair?

	the shaft is the portion of the hair that is above the surface of the skin whereas the root is the portion of the hair that is below the surface of the skin
	the shaft is the portion of the hair that is surrounded by the hair follicle whereas the root is the portion of the hair that is not surrounded by the hair follicle
	the shaft contains actively dividing hair cells whereas the root contains only dead cells
	the shaft is attached to the arrector pili muscle whereas the root is attached to sweat glands

Which portion of the hair contains cells that actively undergo mitosis?

	shaft
	follicle
	matrix
	cuticle

Solutions

Expert Solution

A	wrong	If vasoconstriction occurs, there is less blood flow to the skin. In this way, the body tries to conserve the heat. Therefore it will increase the temperature.
B	wrong	increased skeletal muscle contraction will produce heat which will elevate the body temperature.
C	right	sweating decreases the body temperature.

2) The cell division in the epidermis of the skin occurs in the stratum basale (lowermost layer) only. From stratum basale, the keratinocytes come upward and approximately 40-60 days are taken for it to be completely sloughed off.

3) It takes about 40-60 days. Time required to move from stratum basale upto lowermost part of stratum corneum is 11-14 days.

To cross stratum corneum- 11-14 days.

The sloughing requires- 24-30 days.

A	right	root is below the surface of the skin but shaft is above the surface of skin.
B	wrong	Shaft is not anchored by follicle but shaft is anchored by follicle.
C	wrong	shaft contains dead cells whereas the root contains actively dividing cells.
D	wrong	Shaft is attached to the glands whereas the root is attached to the arrector pili muscle.

5) The part of hair which continuously undergoes mitosis is hair follicle.

Sydney Mullin answered 8 months ago

Next > < Previous

Related Solutions

1. Which receptors have a narrow temperature range in which a tonic response is invoked? Which...

1. Which receptors have a narrow temperature range in which a tonic response is invoked? Which receptors have a broader range? 2. What are transient receptor potential (TRP) ion channels? What do they do? What does the phrase ‘firing threshold’ mean? 3. Which parts of the brain are involved in cooling the body? Which parts are involved in warming the body? Be specific as to which segments of the particular brain structure is affected.

The demand for________ (normal/ inferior/ consumer) goods increases with a decrease in income

The demand for________ (normal/ inferior/ consumer) goods increases with a decrease in income, whereas____________ (public/normal/private) are goods that cannot be bought or sold.

As speed increases in an engine with throttle body fuel injection, does the temperature of the...

As speed increases in an engine with throttle body fuel injection, does the temperature of the air-fuel mixture at the intake manifold exit increase or decrease? Explain what parameters affect your answer.

If the number of units produced increases from 900 to 1,200, which is within the relevant range, cost per unit will decrease.

If the number of units produced increases from 900 to 1,200, which is within the relevant range, cost per unit will decrease. Therefore, we should recommend that Columbia Products increase its production to reduce its costs. Do you agree? Explain why or why not? What other cost, if any, should be considered?.

which of the following organisms controls its body temperature by means of its behavior? a) turkey...

which of the following organisms controls its body temperature by means of its behavior? a) turkey b) iguana c) Hamster The Gila wood pecker is a bird of the Sonoran desert int southwest US and northwestern Mexico. the bird as close relationship with saguaro cactus. in which the bird makes nesting holes in the older., thicker sections of the plant without damaging it. in turn, the bird will eat diseased and parasitized parts of the cactus, as well as any cactus0eating...

2. Suppose that a firm can decrease the rate at which its variable cost increases by...

2. Suppose that a firm can decrease the rate at which its variable cost increases by paying a larger fixed cost up front. Plot the two fixed cost curves in one diagram. Plot the two average fixed cost curves in a second diagram. Plot the two variable cost curves in a third diagram. Plot the two average cost curves in a final diagram. Explain why this kind of technological change may explain why large chain stores like WalMart and Costco...

Suppose a firm can decrease the rate at which its variable cost increases by paying a...

Suppose a firm can decrease the rate at which its variable cost increases by paying a larger fixed cost up front. Plot the two fixed cost curves in one diagram. Underneath this first diagram, plot the two average fixed cost curves in a second diagram. Plot the two variable cost curves in a third diagram. Underneath the third diagram, plot the two variable cost curves in a fourth diagram. In a fifth diagram, plot the average (total) cost curves that...

2. Suppose that a firm can decrease the rate at which its variable cost increases by...

1. The testicles are kept cooler than normal body temperature. Name the structures that are involved...

1. The testicles are kept cooler than normal body temperature. Name the structures that are involved with this & describe how they accomplish this. 2. What organs are considered to be secondarily retroperitoneal?

1. Identify the normal balance of the account and the side on which it increases and...

1. Identify the normal balance of the account and the side on which it increases and decreases for the Liability Account. 2. Develop two transactions for the Liability Account, one that results in an increase to the account group and one that results in a decrease to the account. For each transaction (increase/decrease) prepare the following information. a. Written description of the business transaction b. Explanation of an accounting principle or assumption that applies to the transaction. c. Journal entry...

Subjects