test 2 Flashcards
This tissue is found lining the chambers of the heart (the “endocardium”) and the lumen of blood vessels and lymphatic vessels, where it is called endothelium.
Simple squamous epithelium
is found lining kidney tubules and smaller ducts of many gland, covers surface of ovary
Simple cuboidal epithelium
The types of fibers found in the extracellular matrix of connective tissue include:
Collagen fibers
Elastic fibers
Reticular fibers
The extracellular fibers in connective tissue that are very strong and resist pulling forces are
Collagen fibers
The main function of dense regular connective tissues is:
Strong attachment between structures like bones
This type of connective tissue has no blood supply and so heals poorly following an injury.
Cartilage
This type of membrane lines a body cavity that does NOT open directly to the outside.
Serous
This layer of the skin is composed of keratinized stratified squamous epithelium.
Epidermis
_______ It is a hard protein produced by keratinocytes
keratin
This cell responds to ultraviolet by making more melanin.
Melanocytes
This epidermal cell has a role in immunity and disease resistance.
Langerhans
This layer of the epidermis is composed of a single row of cuboidal or columnar keratinocytes
Stratum basale
Which layer of the epidermis continually generates new keratinocytes?
Stratum basale
This layer of the epidermis contains layers of flattened keratinocytes that are going through apoptosis
Stratum granulosum
_____ is present only in thick skin
stratum lucidum
_________ It consists of 25-30 layers of dead keratinocytes
stratum corneum
____ Is the process of cells producing and accumulating keratin
Keratinization
This layer of skin is composed mainly of connective tissue with collagen and elastic fibers.
Dermis
Differences in the skin color among peoples is due to The amount of melanin produced by _____ and transferred to ______
melanocytes, keratinocytes
melanin It is transferred from melanocytes to _____ to form a shield over their nuclei
keratinocytes
hair and nails are both _____ derivates
epidermal
The glands distributed throughout the skin of most regions of the body, especially in the skin of the forehead, palms, and soles are the
Eccrine sweat glands
_____ It is found in the palms, soles of the feet and fingertips
It does not contain hair follicles
It contains more sweat glands than thin skin
It contain epidermal ridges
thick skin
Hair consists of layers what 3 things?
medulla, cortex and cuticle
____ produces 2 identical daughter cells
mitosis
where does translation take place?
in the cytosol and surface of rough ER
a ____ is a sequence of nucleotides on a chromosome
gene
two molecules produced by glycolysis
pyruvic acid
____ tissue protects supports binds
connective
____ tissue covers lines forms glands
epithelial