Cutaneous Membrane Quiz

What is the cutaneous membrane primarily composed of?

• Dense fibrous connective tissue and keratinizing epithelium

• Loose connective tissue and simple epithelium

• Cartilage and smooth muscle

• Bone and adipose tissue

When is the cutaneous membrane considered a dry membrane?

• When sweat is present

• When sweat is not present

• When it is exposed to water

• When it is covered by clothing

Which layer lies directly beneath the stratified squamous epithelium in the cutaneous membrane?

• Lamina propria

• Basement membrane

• Muscularis mucosae

• Reticular lamina

What is the primary function of Merkel cells in the epidermis?

• Producing melanin

• Acting as sensory receptors for touch

• Defending the skin against microorganisms

• Producing keratin

What is the role of Langerhans cells in the epidermis?

• Producing keratin

• Acting as sensory receptors

• Defending the skin against microorganisms

• Protecting the skin from ultraviolet rays

Tags

NGSS.MS-LS1-3

What is the main function of keratinocytes in the epidermis?

• To produce melanin

• To form the skin's protective barrier

• To detect sensory stimuli

• To provide waterproofing

What is the process of keratinization?

• The process of cell division in the epidermis

• The process where keratinocyte cells change their shape, lose their nucleus, and become mainly hard protein or keratin

• The process of cell regeneration in the dermis layer

• The process of forming clear cells in the stratum lucidum

Tags

NGSS.MS-LS1-2

Why is the stratum corneum slightly acidic?

• To promote cell division

• To help in the defense against harmful microorganisms

• To make the skin more elastic

• To increase water retention in the skin

What is the deepest epidermal layer of the skin called?

• Stratum corneum

• Stratum germinativum

• Stratum spinosum

• Stratum granulosum

Which type of cells are mostly found in the stratum germinativum layer?

• Keratinocytes

• Langerhans cells

• Melanocytes

• Merkel cells