Integumentary system

1. The papillary layer of the dermis is most closely associated with which layer of the epidermis?

• 1. stratum spinosum

• 1. stratum corneum

• 1. stratum granulosum

• 1. stratum basale

Langerhans cells are commonly found in the ________.

• 1. stratum spinosum

• 1. stratum corneum

• 1. stratum granulosum

• 1. stratum basale

The papillary and reticular layers of the dermis are composed mainly of ________.

• melanocytes
  

• keratinocytes
  

• connective tissue 

  
  

• adipose tissue

  
  

Collagen lends ________ to the skin. 

• elasticity

• structure
  

• color

• UV protection

  
  

Which of the following is not a function of the hypodermis?

• 1. protects underlying organs

• 1. helps maintain body temperature

• source of blood vessels in the epidermis

• 1. a site to long-term energy storage

In response to stimuli from the sympathetic nervous system, the arrector pili ________.

• 1. are glands on the skin surface

• 1. can lead to excessive sweating

• 1. are responsible for goose bumps

• 1. secrete sebum

The hair matrix contains ________.

• 1. the hair follicle

• 1. the hair shaft

• 1. the glassy membrane

• 1. a layer of basal cells

 Eccrine sweat glands ________.

• 1. are present on hair

• 1. are present in the skin throughout the body and produce watery sweat

• 1. produce sebum

• 1. act as a moisturizer

Sebaceous glands ________.

• 1. are a type of sweat gland

• 1. are associated with hair follicles

• may function in response to touch

• 1. release a watery solution of salt and metabolic
     waste

Similar to the hair, nails grow continuously throughout our lives. Which of the following is furthest from the nail growth center?

• 1. nail bed

• 1. hyponychium

• 1. nail root

• 1. eponychium