Unit 6; Concept 1

The largest external (superficial) organ of the human body is the…

• Hair

• Small Intestine

• Skin

• Liver

Answer explanation

The liver is the human body’s largest INTERNAL (Deep) organ, weighing approx. 3-4lbs. If you chose Small Intestine that is the “longest” organ in the body (also most internal surface area).

The ___________ system includes the skin, nails, hair, and sweat glands. (Check Spelling)

Draw a circle around the Stratum Basale. (Hint: Basale “Base”; this single row of stem cells produce new keratinocytes.

Answer explanation

Correct Answer: Single row on the bottom of the diagram

Tags

NGSS.MS-LS1-3

Identify the Hypodermis (Hint: this layer consists of primarily adipose tissue)

Answer explanation

The correct area to identify is the very bottom yellow layer which are mainly fat cells.

Which of the following is NOT apart of the Integumentary System?

• Skin

• Hair

• Nails

• Salivary Glands

• Sweat Glands

The ________ is the most superficial (exterior) layer of skin.

• Dermis

• Epidermis

• Hypodermis

• Hyperdermis

The DEEPEST (internal) layer of skin is the…

• Hypodermis

• Hyperdermis

• Epidermis

• Dermis

The majority of blood vessels, sweat glands, & hair follicles in the skin can be found in the…

• Epidermis

• Dermis

• Hypodermis

• Subcutaneous Layer

The Epidermis houses which of the following structures…

(Multiple Answers)

• Stratified Squamos Epithelial Cells

• Columnar Epithelial Cells

• Keratinocytes

• Melanocytes

• Capillaries

Answer explanation

Keratinocytes are in fact stratified squamos epithelial cells themselves. Melanocytes can also be found in the Epidermis (Top Layer)

Which of the following layers is NOT apart of the Epidermis?

• Stratum Corneum

• Stratum Basale

• Stratum Granulosum

• Hypodermis