anatomy 3

1.

1 point

A synchondrosis is

a suture

a fibrous joint

a cartilagenous joint

a gomphoses

2.

1 point

although the integument is a covering, it is by no means simple, and some of its functions include

cooling the body by increasing the action of the sebaceous glands during high-temperature conditions

the dermis providing the major mechanial barrier to chemicals, water, and other external substances

resident macrophage-like cells whose function is to ingest antigenic invaders and present them to the immune system

epidermal blood vessels serving as a blood resevior

3.

1 point

cartilage tissues are likely to be slow in healing following injury because

cartilage cells cannot reproduce

cartilage tissues lack direct blood supplies

cartilage cells are surrounded by thin fluid

the intercellular material is a mineralized solid

4.

1 point

Which structures are fingerlike projections that greatly increase the absorbing surface area of cells?

microvilli

stereocilia

flagella

cilia

5.

1 point

an ion with a valance of 3 may have a total number of _____ electrons

6.

1 point

which of these is the most inferior in position?

frontal lobe

nasal bones

mandible

zygomatic arch

7.

1 point

Which of the following epithelial tissues lines an organ that periodically increases and decreases in volume?

simple squamous

simple columnar

transitional

stratified cuboidal

8.

1 point

Most of the joints in the body are

synchondroses

gomphoses

synovial

sutures

9.

1 point

smallest particle of a substance that still retains its properties

proton

atom

cation

anion

10.

1 point

the major purpose of the epiphyseal plate (metaphysis) is

enlarging of medullary cavity

lengthening of long bones

enlarging the epiphyses

providing strength to long bones

11.

1 point

The lower end of the fibula can be felt as an "ankle bone". The correct name is the

lesser trochanter

talus

head of the fibula

lateral malleolus

12.

1 point

the anterior cruciate ligament aids in the stabilization of the knee joint by

preventing overflextion of the knee joint

controlling hyperextension

preventing the femur from sliding forward on the tibia

minimalizing lateral movements of the femur and the tibia

13.

1 point

Which of the following statements is correct regarding RNA?

If the base sequence of DNA is AATGCA, the mRNA template will be UCCAGU

Messenger RNA, transfer RNA, and ribosomal RNA play a role in protein synthesis

rRNA is always attached to the rough ER

There is exactly one specific type of mRNA for each amino acid

14.

1 point

the gland type that secretes products such as milk, saliva, bile or sweat through a duct is

an exocrine gland

an endocrine gland

15.

1 point

a bond in which electrons are shared equally is a(n)

hydrogen bond

polar covalent bond

ionic bond

nonpolar covalent bond

16.

1 point

an electrically charged particle due to loss of an electron is called a(n)

anion

cation

atom

proton

17.

1 point

what is commonly known as the elbow bone?

the styloid process

the olecranon process of the ulna

the radial tuberosity

the surgical neck of the humerus

18.

1 point

Chromosomal centromeres split and chromosomes migrate to opposite ends of the cell occurs in

metaphase

prophase

telophase

anaphase

19.

1 point

in the following grouping, which term does not belong?

nails

hair

stratum basale

stratum corneum

20.

1 point

Remodeling of bone is a function of

chondrocytes and osteocytes

osteoclasts and osteoblasts

osteoblasts and osteocytes

chondroblasts and osteoblasts

21.

1 point

a good example of a positive feedback mechanism would be

body temperature regulation

blood calcium level regulation

enhancement of labor contractions

regulating gluecose levels in the blood

22.

1 point

desmosome junctions are most likely found in which of the following tissues?

epidermis

cartilage

areolar

skeletal muscle

23.

1 point

fontenels of a newborn's skull consists of thin plates of

wormian bones

hyaline cartilage

membranes of dense fibrous connective tissue

fibrocartilage

24.

1 point

the cell which secretes the protein fibers in loose connective tissue is called a

mast cell

macrophage

fibroblast

osteocyte

25.

1 point

Which of these is an inclusion, NOT an organelle?

cilia

glycogen

microtubule

lysosome

26.

1 point

a bond in which electrons are completely lost or gained by the atoms involved is a(n)

hydrogen bond

nonpolar covalent

ionic bond

polar covalent

27.

1 point

Which property of water is demonstrated when we sweat?

High heat capacity

Polar solvent properties

reactivity and cushioning

High heat of vaporization

28.

1 point

in climbing stairs, the hip and knee of the forward leg are both

extended

dorsiflexed

flexed

hyperextended

29.

1 point

a red blood cell placed in pure water would

neither shrink nor swell

swell initially, then shrink as equillibrium is reached

swell and burst

shrink

30.

1 point

a type of bond important in tying different parts of the same molecule together into an 3-D structure is called a

ionic

hydrogen bond

polar covalent

non polar covalent

31.

1 point

What is the main, general purpose of negative feedback?

to control all body system tissues

to regulate excretion

to keep the body's sugar high

to maintain homeostasis

32.

1 point

which of the following bones does not contain a sinus?

ethmoid

sphenoid

frontal

occipital

33.

1 point

Which of the following is NOT a way of classifying epithelial tissues?

the shape of the cells

the arrangement of the cells into one or more layers

the kinds of fibers present

the kind of free surface specializations that may be present on the cells

All of the above are ways of classifying epithelial tissues

34.

1 point

The main component of cytosol is

protein

water

sugars

salts

35.

1 point

Which of the following is not part of the axial skeleton?

mandible

scapula

atlas

sacrum

36.

1 point

Centrioles moving to opposite ends of the cell occurs in

anaphase

prophase

telophase

metaphase

37.

1 point

the serous membrane that lines the abdominal cavity

also covers the viscera (organs) in that cavity

produces a watery, lubricating secretion

allows the organs to glide easily on one another

must be cut during abdominal surgery

all of the above are true

38.

1 point

which of the following is not true of proteins?

they may be denatured or coagulated by heat or acidity

they appear to be the molecular carriers of the coded hereditary information

some types are called enzymes

their function depends on their 3D shape

39.

1 point

ligaments and tendons are composed of

dense connective tissue

areolar tissue

hyaline cartilage

loose connective tissue

40.

1 point

When an osteoblast becomes isolated in a lacuna, it is transformed into a(n)

macrophage

progenitor cell

osteocyte

osteoclast

41.

1 point

chromosomes uncoiling to form chromatin occurs in

prophase

metaphase

telophase

anaphase

42.

1 point

a needle would pierce the epidermal layers of the forearm in which order?

corneum granulosum spinosum basale

basale spinosum granulosum corneum

basale spinosum granulosum lucidum cornium

granulosum basale spinosum corneum

43.

1 point

the bending or movement of a limb away from the midline of the body is known as

adduction

abduction

extension

flexion

44.

1 point

Which of the following statements is correct about isotopes?

Isotopes of the same element have the same atomic number but differ in their atomic masses

All the isotopes of an element are radioactive

All the isotopes of an element have the same number of neutrons

Isotopes occur only in the heavier elements

45.

1 point

Peroxisomes

are also called microbodies, and contain acid hydrolases

function to digest particles ingested by endocytosis

sometimes function as secretory vesicles

are able to detoxify substances by enzymatic action

46.

1 point

standing on your toes, as in ballet, requires ________ of the foot

plantar flexion

flexion of the foot

hyperextension of the ankle joint

dorsiflexion

47.

1 point

DNA replication

can also be called mitosis

takes place during interphase of the cell cycle

is spontaneous, not requiring enzyme action

occurs only in translationally active areas

48.

1 point

Which of the following epithelial tissues is best designed for filtration and diffusion?

simple squamous

simple cuboidal

simple columnar

pseudostratified columnar

49.

1 point

The RNA responsible for bringing the amino acids to the "factory" site for protein formation is

ssRNA

mRNA

tRNA

rRNA

50.

1 point

teeth are found in the

palatines and mandible

maxilla and mandible

maxilla, mandible, and palatines

maxilla and palatine