Human Anatomy & Physiology 1
Bio 111

Pre-Workshop 5: Skin Anatomy

Use Chapter 6 in your textbook to do these Pre-Workshop Activities.

Skin Diagram

Activity A: Skin Layers and Structures

Write the name of the structure of the skin or skin layer that best fits the descriptions below.

1._____________________Fingerlike projections of dermis that produce dermal ridges
2._____________________Avascular layer of epidermis where mitosis takes place
3._____________________Cell layer of the epidermis that appear to have spikes sticking out of them membrane.
4._____________________ Contractions of this muscle cause goose bumps
5._____________________Layer of epidermis that is 25-30 cell layers thick
6._____________________Tough, water proof layer of the epidermis cell
7._____________________Top layer of the dermis
8._____________________Epidermal layer found only in thick skin
9._____________________Layer of dermis that contains sweat glands and pacinian corpuscles
10._____________________Layer of the epidermis that has visible granules in the cells
11._____________________Layer under the skin made mostly of adipose tissue
12._____________________Layer also known as the stratum germinativum
13._____________________Layer of dermis where find free nerve endings for pain
14._____________________Structure used to detect touch sensations
15._____________________Layer of skin made of stratified squamous tissue


Activity B: Cells of the Epidermis

Write the name of the epidermal cell that best fits the descriptions below.

1._____________________Cells that are 80-90% of the epidermis
2._____________________Immune cells
3._____________________Produces a pigment that absorbs UV radiation
4._____________________ Cells that produce the protein keratin
5._____________________Along with a sensory neuron give the sensation of touch
6._____________________Spidery looking cells
7._____________________Cells easily damaged by UV radiation
8._____________________Cells made in the bone marrow that migrate to the skin




Activity C: Accessory Skin Structures

Write the name of the structure that best fits the descriptions below.

1._____________________Type of sweat gland asociated with hair follicles
2._____________________Produces a pigment that absorbs UV light
3._____________________Projections of dermis that contain capillaries to nourish sratum basale layer
4._____________________Its secretion is sebum
5._____________________Visible part of hair
6._____________________Type of sweat gland most numerous on palms, soles and brow
7._____________________Type of gland attached to hair follicle by a tiny duct