Chapter 4-6 Flashcards
What tissue type has lacunae and calcium salts in it?
Osseous tissue
What is connective tissue matrix composed of ?
Connective tissue not composed mainly of cells
Tissue type that arises from all three germ layers
Epithelial Tissue
What kind of cartilage forms the external ear?
Elastic cartliage
Define Endocrine glands
Secrete (by exocytosis) hormones that travel through lymph or blood to their specific target organs
Define Exocrine glands
Secretions released onto body surfaces (skin) or into body cavities
How is epithelium classified?
Simple epithelium only has one row
Stratified has several rows
List the layers of the skin
Epidermis
Dermis
Hypodermis
What is the function of the Epidermis?
The outermost layer of skin, provides a waterproof barrier and creates our skin tone.
What is the function of the Dermis?
is a thick layer of fibrous and elastic tissue (made mostly of collagen, with a small but important component of elastin) that gives the skin its flexibility and strength. The dermis contains nerve endings, sweat glands and oil (sebaceous) glands, hair follicles, and blood vessels.
What is the function of the Hypodermis?
is a subcutaneous (just beneath the skin) fat that functions as insulation and padding for the body. Next is the dermis, which provides structure and support. Last is the epidermis, which functions as a protective shield for the body.
What is acne?
A skin condition that occurs when hair follicles plug with oil and dead skin cells
What is responsible for reception of touch or light pressure
Meissner’s corpuscles
What glands produce ear wax?
Ceruminous glands—lining of external ear canal; secrete cerumen (earwax)
What are the types of sweat glands?
Apocrine and Eccrine
Why are eyebrows shorter than scalp hair?
Hairs that are generally shorter, like eyebrows or arm hairs, have a shorter growth period before a new hair pushes the old one out.
What is the types of bones fractures?
Position of bone ends after fracture
Completeness of break]
Whether skin is penetrated
Define nondisplaced fracture
ends retain normal position
Define displaced fracture
ends out of normal alignment
Define complete fracture
broken all the way through
Define incomplete fracture
not broken all the way through
Define open compound fracture
skin is penetrated
Define closed simple fracture
Closed (simple) – skin is not penetrated
What are the types of bone marrow?
Red Marrow
Yellow Marrow
Define Ramus
Ramus is the armlike bar of bone and is a joint projection.
Define Meatus
Meatus is a canal or tube and is a depression
How is the periosteum secured to the bone?
Sharpey fibers
What are the types of bone growth?
Interstitial (longitudinal) growth
Increase in length of long bones
Appositional growth
Increase in bone thickness
What are the types of bone disorders?
Osteomalacia
Rickets (osteomalacia of children)
Osteoporosis
Paget’s Disease
