A&P Lab Test 2
Squamous epithelial cells are
thin and flat, like fish scales
The loose connective tissue within the papillary layer of the dermis is rich in blood vessels and cells that function in the body's defenses. It is primarily composed of __________
Areolar Connective Tissue
A medical monofilament was used in which activity?
The stimulus sensitivity testing
__________ glands are found primarily in the genital and axillary areas.
Apocrine
Blood supply to the skin: Epidermis is ___________ and the dermis is _______________
Avascular, richly vascularized
Connective tissue that looks like trees that have been cut across
Bone/osseous tissue
__________ is a yellow-orange pigment found in the stratum corneum and the hypodermis. Carotene Melanin Keratin Hemoglobin
Carotene
The most abundant and widely distributed tissue type in the body
Connective Tissue
___________ consists primarily of dense, interwoven fibers of collagen designed to resist tearing from any direction.
Dermis
During osmosis, water moves _________ its concentration gradient
Down
The most abundant type of sweat (sudoriferous) gland
Eccrine Gland
Which area of the body tested should contain a higher receptor density and can therefore sense stimuli more accurately?
Fingertips and the palm
Of glucose, ions, water, glycogen and proteins, which can diffuse across a typical dialysis membrane? (Which are permeable?)
Glucose, ions and water
Bone and cartilage are connective tissues that have
Ground substances that is firm or hard
This accessory organ of the skin is composed of primarily dead, keratinized cells
Hair
Diffusion is the movement of solutes from an area of _________ concentration to _________ concentration
Higher, lower
Osmosis is the movement of a solvent from an area of _________ concentration to _________ concentration across a selectively permeable membrane
Higher, lower
In the temperature sensation activity, at what extreme temperatures will activate the pain receptors to warn off potential harm?
Hot Peak - Greater than 45 C Cold Peak - Less than 10 C
Which solution in a test tube would work best in extracting DNA from cheek cells for analysis? mesotonic hypertonic isotonic hypotonic
Hypotonic
What additional component associated with outer skin epithelium is not seen in oral epithelium? blood vessels nerve fibers keratin basal lamina
Keratin
Which of these terms applies best to all material in this tissue that is not cellular? matrix interstitial fluid mesenchyme ground substance
Matrix
These cells produce a brown-to-black pigment that colors the skin and protects DNA from ultraviolet radiation damage. The cells are __________. dendritic cells keratinocytes tactile cells melanocytes
Melanocytes
All connective tissue is derived from an embryonic tissue known as __________. cartilage ground substance reticular mesenchyme
Mesenchyme
All the following are examples of connective tissue EXCEPT __________. tendons bones ligaments neurons
Neurons
Of the two major cell types found in nervous tissue, __________ cells are highly specialized to generate and conduct electrical signals. neurons neuroglial
Neurons
The ____________ and _____________ can be distinguished based on their structural components, they form a continuous layer of the skin termed the dermis.
Papillary Layer, Reticular Layer
This layer of the dermis is responsible for fingerprints
Papillary layer
These glands are found all over the skin except in the palms of the hands and soles of the feet. They produce an oily substance that lubricates skin and hair.
Sebaceous glands
Which would require an input of energy? - Diffusion - Osmosis - Vesicular Transport - Filtration
Vesicular Transport
Which is not a function of the hypodermis? to store energy to insulate the body from heat loss to loosely connect the skin to underlying tissue to supply cells to replace those lost from the epidermis
to supply cells to replace those lost from the epidermis (They are replaced by cells provided by the basal cells of the epidermis itself)
The most superficial layer of the epidermis is the __________. stratum spinosum stratum corneum stratum basale stratum granulosum
Stratum corneum
From superficial to deep, the layers of the epidermis of thin skin are
Stratum corneum, (stratum lucidum/clear layer), stratum granulosum, stratum spinosum, stratum basale
Diffusion and osmosis are _________ processes
Passive
The portion of a hair that projects from the scalp surface is known as the __________. bulb matrix shaft root
Shaft
During overhydration, sodium ions move out of the cell into the extracellular fluid. What is the effect on cell shape?
Shrinking
This epithelial tissue forms the kidney tubules, and the ducts and secretory portions of the small glands
Simple cuboidal
Which type of muscle tissue is controlled voluntarily?
Skeletal
What is the largest accessory organ in the body?
Skin
Which of the following is true about the rate of diffusion across a selectively permeable membrane? - Smaller molecules diffuse faster than larger molecules through a membrane. - Larger molecules diffuse faster than smaller molecules through a membrane. - The size of the molecules has no effect on the rate of diffusion through the membrane. - All molecules diffuse at the same rate through the membrane.
Smaller molecules diffuse faster than larger molecules
This type of muscle tissue is found in the walls of hollow organs. It has no striations, and its cells are spindle shaped. It is __________. smooth muscle cardiac muscle skeletal muscle
Smooth Muscle
This layer of the epidermis contains translucent cells filled with keratin fibrils. It is found only in thick skin.
Stratum lucidum