a&p I lecture

most prevalent cell of skin. Contains numerous intermediate filaments called “keratin”

responsible for producing the pigment in skin, melanin

an “antigen presenting cell”, it recognizes and binds to foreign molecules and transports them into the connective tissue where immune cells will respond

the least common cell in skin. This cell contacts a sensory nerve ending and is involved in touch sensation

the study of inheritance or how certain personal traits (characteristics) are transmitted from one generation to another

specific segment of DNA responsible for synthesis of a specific protein or group of related proteins responsible for a specific cell function or characteristic. gives us specific traits.

alternative or different form of a gene (or genes) responsible for a specific trait, such as hair color.

term describing the actual genetic make-up of an individual or what specific alleles are present for each gene in an individual.

term used to describe the actual physical or outward expression of a gene (the observable affects of gene activity).

a change in the structure of a gene (change in DNA sequence) that will affect the genotype and phenotype of an individual.

Chromosomes that are dividing are made up of 2 identical parts called ?

The sister chromatids are held together at a region called

DIPLOID # = ?


HAPLOID # =?

a tumor that does not spread throughout the body. May be dangerous or fatal due to location.

tumor composed of rapidly dividing cells that can spread throughout the body and affect the normal structure and function of any organ.

Cancer can spread by:
A. Invasion of surrounding tissue
B. Metastasis – spread through blood or lymphatic vessels
C. Seeding- physical transport of cancer cells
D. all of the above

part of the gene that does code for a protein

part of the gene that does not code for a protein

TYPES OF CELLULAR RESPIRATION:
occurs in the presence of oxygen (O2) . This consumes O2 and gives off CO2 during the production of ATP.

TYPES OF CELLULAR RESPIRATION:

occurs in the absence of oxygen

connective tissue layer surrounding each piece of cartilage (except fibrocartilage). Responsible for growth and repair of cartilage.

secrete into hair follicles (oil glands)

Sweat glands (Sudoriferous glands)
•Eccrine sweat glands – most prevalent
•Apocrine sweat glands – limited areas