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