Ch 4.3 Integumentary System

Labelling

In the picture, what layer is indicated by the red star?

Drag labels to their correct position on the image

Stratum basale

Stratum granulosum

Stratum corneum

Stratum spinosum

Stratum lucidum

Match

Match the following cells to their appropriate function.

• Keratinocytes

• Mast cells

• Langerhans

• Merkle cells

• Melanocytes

Form desmosomes

Release histamine

Immune protection

Sensory perception

Provide UV protection

• Form desmosomes

• Release histamine

• Immune protection

• Sensory perception

• Provide UV protection

Match

Match the following

• Bulbous-endings (Ruffini)

• Merkel Cells

• Free nerve endings

• Pacinian corpuscles

Mechanoreceptors that respond to stretch

Touch receptors that detect texture and shape

Receptors that respond to pain and temperature

Pressure sensors that detect vibration

• Mechanoreceptors that respond to stretch

• Touch receptors that detect texture and shape

• Receptors that respond to pain and temperature

• Pressure sensors that detect vibration

Multiple Choice

Which part of the hair structure is responsible for mitotic growth?

• Hair shaft

• Hair bulb

• Hair follicle

Multiple Choice

Which of the following statements about the arrector pili muscle are correct?

• It is the largest smooth muscle in the body.

• It is attached to hair follicles.

• It is response to excess heat in the environment, resulting in a cooling effect.

Multiple Choice

What is the main function of the cuticle in the nail structure?

• To provide color to the nail

• To protect the nail matrix

• To support the phalanx

• To produce keratin

Multiple Choice

Where are eccrine sweat glands most abundantly located?

• Thighs

• Back

• Palms, soles of feet, and forehead

• Chest

Open Ended

Explain how bacteria contribute to body odor in areas with apocrine glands.

Multiple Choice

The integumentary system includes structures such as skin, hair, nails, and glands. Which of these is NOT considered an accessory structure?

• Skin

• Hair

• Nails

• Glands

Open Ended

What questions do you still have about the accessory structures and regulation of the integumentary system?