3. The layers of the epidermis, from deep to superficial are:

Stratum corneum, stratum granulosum, stratum spinosum, stratum basale.

Stratum basale, stratum spinosum, stratum granulosum, stratum corneum.

Stratum basale, stratum granulosum,stratum corneum, Stratum spinosum.

Stratum corneum,stratum spinosum,stratum granulosum,stratum basale.

3. The layers of the epidermis, from superficial to deep are:

Stratum corneum,stratum granulosum,stratum spinosum, stratum basale.

Stratum basale, stratum spinosum, stratum granulosum, stratum corneum

Stratum spinosum, stratum granulosum, stratum corneum, Stratum basale

Stratum corneum,stratum spinosum,stratum granulosum,stratum basale

4. Exocrine glands secrete ; Endocrine glands secrete .

A. for body-wide distribution, into an epithelial lining

B. into an epithelial lining, for body-wide distribution

C. through a duct, into the bloodstream

D. into the bloodstream, through a duct

E. A&D

F. B&C

5. Which of the following istrue regarding the epidermis:

It is highly vascular.

It is comprised of five distinct layers.

The basement membrane contains its blood supply.

Epidermal ridges change throughout a person’slifetime.

5. Which of the following isfalse regarding the epidermis:

It is avascular.

As cells divide they are pushed towards the basement membrane.

(False, as cells divide they are pushed towardsthe external surface of the stratum corneum)

The cells of the stratum basale cells have a high rate of cell division.

Epidermal ridgesform a person’sfingerprints.

BIOD 151 module 7 exam (Integumentary system)- Portage Learning

Module 7 Exam

1. Identify the region and the layer ofskin that is highlighted in blue. (Also indicated

by the arrow, below) *NOTE: To receive full credit you must label two regions.

Stratum granulosum, Epidermis

2. A- Identify the sensory cell receptor highlighted in blue, below, also indicated by the arrow.

B- What sensory information is detected by this type of receptor?

A) Meisner’s corpuscles;

B) Detectslight touch and vibration (mechanoreceptor)

Temperature

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6. Match the cell with its single best description, using each description only once

Fibroblasts - Produces collagen

Keratinocytes - Produces a protein to protect the skin

Langerhans cells - Assists in immune responses

Melanocytes - Produces a pigment that absorbs UV rays

Meisner’s corpuscles – Detect Light Touch

Nociceptors – Detects pain

7. A person touches a hot cup of coffee. What type ofsensory organ detects thisinformation?

Thermoreceptors

8. Merkel cells are embedded in what layer of the skin?

Epidermis

8. Main blood supply for the skin is found in what layer?

Dermis

9. In your own words, how can the skin be used to determine if a person is dehydrated?

Pinching the skin on a finger or back of hand, when you let the skin go if the skin stays in the pinched state this is what

medical staff determines that the patient is in a dehydrated state

10. What is the name and function of the structure below? (Highlighted in blue, also indicated by the arrow)

Arrector pili is a muscle that is connected to each hair

follicle and it contracts when the body is cold or when

experiencing emotional responses.

11. What is the name and function of the structure below?

(Highlighted in blue, also indicated by the arrow)

Sebaceous gland or the called the oil gland. This produces sebum

(oil) to protect the hair and skin from drying out.

11. What is the name and function of the structure below?

(Highlighted in blue, also indicated by the arrow)

Sweat gland (Sudoriferous) - producessweat almost everywhere

In the body and helps regulate body temperature

12. All of the following are functions ofskin except:

Absorb UV rays

Thermoregulation

Perspiration

Produce vitamin K

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