Integumentary system worksheet bios251 PDF

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Chapter 5 – Integumentary Worksheet (Pictures adapted from Tortora, Derrickson: Principles of Anatomy and Physiology) What are the functions of the integumentary system? 1. 2. 3. 4. 5. 6.

vitamin d synthesis thermoregulation resistance to trauma and infection sensation communication protection What are the layers of the skin and/or cells that the arrows are pointing to on the picture below?

1 2 3

1. epidermis 2. dermis 3. hypodermis

What are the two layers of the dermis and what kind of tissues would be found in each layer? Papillary layer – areolar connective tissue Reticular layer- irregular connective tissue

Compare and contrast the Thick vs Thin skin:

Location? Layers present?

Thick Skin Palm & soles of feet S. lucidum

Hair?

no

Thin Skin Antebrachial region s. basale s. granulosom s. spinosum Yes

What are the three different types of hair and where would you find them? 1. Lanugo, unpigmented hair that appears on the fetus in the last 3 months of development 2. Vellus, Fine, pale hair that replaces lanugo by time of birth. Found in all of hair of children except eyebrows, eyelashes, and scalp hair 3. Terminal, Longer, coarser, and more heavily pigmented. Forms the axillary and pubic hair after puberty

Label the different parts of a hair on the picture below: WORD BANK: -

Shaft Follicle Root Melanocytes Keratinocytes Medulla C

shaft

follicle

medulla root

cortex

melanocytes

Identify the following glands on the picture and describe their function:

Eccrine glands: the major sweat glands of the human body

Sudoriferous glands: Discharge sweat by tiny openings in the surface of the skin. are either of two types of secretory skin glands, eccrine or apocrine.

Ceruminous glands: It acts to shield the skin of the external ear canal from water damage, infection, trauma, and foreign bodies.

Label the different parts of the nail on the picture below:

Apocrine glands: open into the hair follicle, leading to the surface of the skin. It develops in areas abundant in hair follicles, such as on your scalp, armpits and groin. Also, continuously secrete a fatty sweat into the gland tubule.

WORD BANK: -

Cuticle Lunula Nail bed

-

Free Edge Nail Root

nail root

Free edge

lunula

Nail bed

cuticle

What are the ABCDEs of skin cancer? What are the three most common types of skin cancer? Asymmetry, border, color, diameter and evolving are the ABCDEs of skin cancer. Basal cell carcinoma, squamous cell carcinoma and melanoma are the three most common type of skin cancer.

What is the rule of 9’s and how does it relate to skin burns? What are the three classifications of burns and what layers of the integument are affected in each one?

The rule of 9’s method divides the body's surface area into percentages. The front and back of the head and neck equal 9% of the body's surface area. The front and back of each arm and hand equal 9% of the body's surface area. Burns are classified as first-, second-, third-degree. First-degree burns affect only the epidermis. Second-degree burns involve the epidermis and part of the dermis layer of skin. Third-degree burns destroy the epidermis and dermis. What are the steps involved in wound healing? Blood clotting (hemostasis), inflammation, tissue growth (cell proliferation), and tissue remodeling (maturation and cell differentiation)....