Dermis and Epidermis

If you have a deep cut that runs perpendicular (against the grain) to your collagen fibers -->

• You're likely to scar

• Skin should heal with no scar

Layer of epidermis which contains melanocytes and merkel cells

• Stratum basale

• Stratum corneum

• Stratum spinosum

• Stratum granulosum

Type of cell that secretes pigment that makes your skin darker

• Melanocytes

• Merkle cells

• Keratinocyte

• Langerhans cells

Which layer of epidermis would contain 100% dead cells that have been fully keratinized (flattened/hardened)?

• Stratum basale

• Stratum corneum

• Stratum lucidum

• Stratum granulosum

The waterproofing protein that fills the cells in the upper layers of the epidermis.

• Keratin
• Melatonin
• Melanin
• Carotene

Tags

NGSS.HS-LS1-2

What cell produces a protein allows for waterproofing of the skin, nails, and hair?

• Keratinocytes
• Melanocytes
• Merkel (Tactile) Cells
• Langerhans (Dendritic) cell

What layer of epidermis does cell division (mitosis) occur?

• stratum lucidum
• stratum basale
• stratum granulosum
• stratum corneum

Tags

NGSS.HS-LS1-4

A sunburn with no blisters might be an example of a:

• 1st degree burn
• 2nd degree burn
• 3rd degree burn
• 4th degree burn

Where is the thickest skin found on the body?

• Soles of the feet
• Back of hands

• Scalp
• Elbows

The dermis is made up of what type(s) of tissue? Select all that apply.

• Stratified Squamous Epithelial Tissue

• Adipose Tissue

• Muscle Tissue

• Areolar Connective Tissue

• Dense Irregular Connective Tissue