Biology True/False

The elbow is proximal to the shoulder

False

Physiology is the study of the structure of body parts and their relationships to one another

False

A tissue consists of groupes of similar cells that have a common function

True

The term appendicular describes the limbs and their attachments to the body

True

Desmosomes are small extensions that increase the surface area of an exposed cell

False

In osmosis, movement of water occurs toward the solution with the lower solute concentration

False

Solutions that have a greater solute concentration than the cytoplasm are called hypotonic

False

Diffusion always requires a carrier protein

False

The golgi apparatus is the largest internal cell structure and is visible with the light microscopes used in normal labs

False

Microfilaments are thin strands of the contractile protein myosin

True

The cell (plasma) membrane normally contains cholesterol

True

All organelles are bounded by a membrane

False

The brain is found within the ventral cavity of the human body

False

Microtubules are hollow tubes made of subunits of the protein tubulin

True

Exocytosis is a form of active transport

True

The shock-absorbing pads between the vertebrae are formed from fibrocartilage

True

Epithelial tissues always exhibit polarity; that is, they have a free (apical) surface and a basal surface

True

Simple cuboidal epithelia are usually associated with secretions and absorbtion

True

Merocrine glands produce their secretions by accumulating their secretions internally and then repturing the cell

False

The basic difference between dense irregular and dense regular connective tissues is in the amount of elastic fibers and adipose cells present

False

The protein found in large amounts in the outermost layer of epidermal cells is collagen

False

A blister from a burn is best described as a third-degree burn

False

The most dangerous skin cancer is cancer of the melanocytes

True

The hypodermis is composed of adipose and dense connective tissue

False

The dermis is highly vascularized

True

There are four pigments that contribute to skin color: melanin, carotene, chlorophyll, and hemoglobin

False

Hematopoiesis refers to the formation of blood cells within the red marrow cavities of certain bones

True

The structural unity of compact bone (osteon) resenbles the growth rings of a tree trunk

True

Bones are classified by whether they are weight-bearing or protective in function

False

An osteon contains osteocytes, lamellae, and a central canal, and is found in compact bone only

True

The amount of movement permitted by a particular joint is the basis for the functional classification of joints

True

Hinge joints permit movement in only two planes

False

Synovial fluid is a viscous material that is derived by filtration from blood.

True

The major role of ligaments at synovial joints is to help direct movement of the joint and prevent undersirable movement

True

Movement at the hip joint does not have as wide a range of motion as at the shoulder joint

True

A person who has been diagnosed with a sprained ankle has an injury to the ligaments that attach to that joint

True

a movement of the forearm in which the palm of the hand is turned from posterior to anterior is supination

True

Moving the arm in a full circle is an example of circumduction

True

The structural classification of joints is based on the composition of the binding material and the presence or absence of a joint cavity

True

A person who has been diagnosed with rheumatoid arthritis would be suffering loss of the synovial fluids

False

Bending the tip of the finger exhibits flexion

True

A nerve cell and all the muscle cells lthat it stimulates are referred to as a motor end plate

False

One of the functions of skeletal muscle contraction is production of heat

True

The effect of the neurotransmitter (Ach) on the muscle cell membrane is to modify its permeability properties temporarily

True