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Bone Tissue and Skeletal System
For studying bone tissue and the skeletal system
31
Anatomy
Undergraduate 1
04/16/2015

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Cards

Term
What is keratin?
Definition
A tough fibrous protein that provides protection
Term
What influences melanin?
Definition
UV Rays and Heat
Term
Which cells of the skin are involved in immunity?
Definition
Langerhan's Cells
Term
What is a callus?
Definition
Tough skin that is formed by constant grinding or pressure on an area
Term
What is a sebaceous gland?
Definition
Glands of the hair that secrete oil
Term
What is sebum?
Definition
The oil secreted from sebaceous glands
Term
What are vellus hairs?
Definition
Hair that is fine, pale, short and barely visible to the naked eye
Term
What are lanugo hairs?
Definition
Soft, downey, non pigmented hairs that cover the body of a fetus
Term
What is alopecia?
Definition
Baldness
Term
What are Eccrine Glands?
Definition
Most numerous glands ; secrete a watery solution ; cools the body and elimates small amounts of waste.
Term
What are Appocrine Glands?
Definition
Glands that are located in the axillary regions, groin, areolae and bearded facial regions of men ; they secrete a slightly viscous sweat
Term
What is a wart?
Definition
The manifestation of the papilloma virus
Term
What are the characteristics of a first degree burn?
Definition
Mild pain, redness, no blisters, skin functions remain intact
Term
What are the characteristics of a second-degree burn?
Definition
redness, blisters, pain, edema, partial skin functions are lost
Term
What are the characteristics of a third-degree burn?
Definition
Destroyed all three layers of skin, most skin funtions are lost, region is numb due to destruction of nerve endings
Term
What are the layers of cells of the epidermis, in order?
Definition
stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, stratum basale
Term
What is the Diaphysis of a long bone?
Definition
the shaft ; contains the medullary cavity ; made of a wall of compact bone
Term
What is the epiphysis of a long bone?
Definition
wide parts at the ends of the bone ; made mostly of spongey bone but covered with compact bone
Term
What is the metaphysis of the long bone?
Definition
Where the epiphysis and the diaphysis meet
Term
What are osteoblasts?
Definition
Cells that build the bone
Term
What are osteocytes?
Definition
Mature osteoblasts
Term
What are osteoclasts?
Definition
Large cells that breakdown bone
Term
What is the chemical make up of bone?
Definition
25% water, 25% organic proteins, 50% mineral salts
Term
What are lacunae?
Definition
Small spaces between lamellae which house osteocytes
Term
What are lamellae?
Definition
Rings of calcified matrix (the rings of bone tissue)
Term
What are osteons/ Haversian canals?
Definition
Canals formed by the lamellae
Term
What are canaliculi?
Definition
small channels filled with axtracellular fluid connecting the lacunae
Term
What is ossification?
Definition
the process of forming new bone
Term
How many bones are in the body?
Definition
206
Term
What are the 8 different bones of the face? (some are double leaving 14)
Definition

Inf. Nasal Conchae

Lacrimal Bones (2)

Mandible

Maxilla (2)

Nasal Bones (2) 

Palatine Bones (2)

Vomer

Zygomatic Bones (2)

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