Chapter 5 The skin

Question 1

Touch Receptor

Answer 1

Sensory nerve endings in the skin that register basic stimuli

Question 2

Epidermis

Answer 2

Outermost layer of skin

Question 3

Layers of epidermis

Answer 3

The Stratum corneum- outermost layer

Stratum lucidum-Very thin cell layer

Stratum granulosum-Mostly dead cells

Stratum spinosum-Melanin protects against solor rays

Stratum germinativum- layer that goes through mitosis

Question 4

Dermis

Answer 4

Deeper layer of skin

Question 5

Subcutaneous tissues

Answer 5

Continuation of the dermis; connects the skin with the underlying structure

Question 6

layers of the dermis

Answer 6

Papillary- increase the surface area of contact between the epidermis and dermis

Reticular layer- Contains the fatty cells, Blood, Lymph vessels, Sweat, Oil glands, Hair follicles, and Nerve endings

Question 7

Sensory Receptors in the dermis

Answer 7

Free nerve endings- most prevelent and responsible for sense of hot, cold, light touch/pressure; Nociceptors are pain reseptors

Meissner corpscles- Light tough and vibration

Merkel discs- Sensitive to light touch and high concentration

Ruffini corpuscles- Sensitive to deep pressure and tissue distortion

Pacinian corpuscles- Sensitive to vibration and pressure

Question 8

Sabaceous glands

Answer 8

secrete sebum

Question 9

Sudoriferous glands

Answer 9

excrete sweat

Question 10

Allergy

Answer 10

Sensitivity to normally harmless substances