Epithelial Tissue
What is the main function of simple squamous epithelium?
Diffusion/filtration (lungs, kidneys)
What type of connective tissue stores fat and insulates the body?
Adipose tissue
What are the two main layers of the skin?
Epidermis and dermis
What degree of burn destroys both the epidermis and dermis?
Second-degree burn
What are the four bone shapes?
Long, short, flat, irregular
Which epithelial tissue lines the bladder?
Transitional epithelium
Which connective tissue forms tendons and ligaments?
Dense regular connective tissue
What protein do keratinocytes produce?
Keratin
What pigment disorder results in “whitened” patches due to loss of melanocytes?
Vitiligo
What type of cartilage is most abundant in the skeleton?
Hyaline cartilage
What are the two special names for simple squamous epithelia based on location?
Endothelium and mesothelium
What type of cartilage is found in the intervertebral discs?
Fibrocartilage
What pigment protects DNA from UV radiation?
Melanin
Which type of skin cancer arises from keratinocytes in the stratum spinosum?
Squamous cell carcinoma
What is the structural unit of compact bone?
Osteon (Haversian system)
Which type of epithelial tissue contains goblet cells?
Simple columnar or pseudostratified columnar
What three elements make up all connective tissues?
Ground substance, fibers, cells
Name two appendages of the skin.
Hair, nails, sweat glands, sebaceous glands
What causes acne?
Infection/inflammation of sebaceous glands by bacteria (Propionibacterium acnes)
Which bone cells are responsible for breaking down bone?
Osteoclasts
What are the five distinguishing characteristics of epithelial tissue?
Polarity, specialized contacts, supported by connective tissue, avascular but innervated, regeneration
Which connective tissue is considered fluid and transports substances?
Blood
Which dermal layer forms friction ridges (fingerprints)?
Papillary dermis
What’s the main immediate threat to life from severe burns?
Loss of body fluids leading to dehydration and shock
What law states that bones remodel in response to stress?
Wolff’s law