Week 7 Histology - Skin Flashcards Preview

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Flashcards in Week 7 Histology - Skin Deck (15)
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1
Q

Where are Meissner’s corpuscles located? What is their function?

A

Located in the dermal papilla. Function is light touch and low frequency stimuli.

2
Q

What type of skin is this? Name the layers.

A

Thin skin

  1. Stratum basale
  2. Stratum spinosum
  3. Stratum granulosum
  4. Stratum corneum
3
Q

What type of skin is this? Name the layers

A

Thick skin

  1. Stratum basale
  2. Stratum spinosum
  3. Stratum granulosum
  4. Stratum lucidum
  5. Stratum corneum
4
Q

What is that?

A

Scar

5
Q

Identify the gland and how the secretory cells release their product.

A

Apocrine sweat gland (note the large ductal lumen) - release via merocrine secretion (exocytosis of product)

6
Q

Identify the gland and how the secretory cells release their product. Where are the terminal ends of these glands located?

A

Eccrine gland - merocrine secretion, ducts empty onto skin surface

7
Q

Identify the gland on the left and the gland on the right.

A

Eccrine on the left, apocrine on the right

8
Q

What is the gland morphology of apocrine, eccrine, and sebaceous glands, respectively?

A

Apocrine: simple coiled tubular

Eccrine: simple coiled tubular

Sebaceous: simple branched acinar

9
Q

What type of gland is this? By what mechanism is product released?

A

Sebaceous - holocrine secretion

10
Q

ID it and describe their function

A

Meissner’s corpusles in the fingertips - for light touch, low frequency stimuli, pain, temp, and pH

11
Q

ID it and describe its function.

A

Meissner’s corpuscle - for light touch, low frequency stimuli, pain, temp, and pH

12
Q

ID

A

Melanocytes

13
Q

ID it. Where in the integument are these found? What is their function?

A

Pacinian corpuscle - found deep in the reticular dermis and hypodermis. Sense coarse touch, pressure, and vibrations.

14
Q

What structures in the epidermis sense pain and temperature?

A

Free nerve endings

15
Q

In which layer of the integument are melanocytes found?

A

Cell bodies are just below the s. basale; pseudopodia reach up into the epidermis to give melanin to keratinocytes to shield their nuclei from UV damage.