More systems

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Unused muscles deteriorate at a rate of about

1% a day

How many long bones are in each arm?

3

The connective tissue holding the muscles of the lower back leg to the heel

Achilles tendon

A gland in the male reproductive system which contributes a secretion to the semen

Cowper's gland

One of the tubes taking the egg from the ovary to the uterus

Fallopian tube

The passageways which permit blood to circulate through bones are called __________canals.

Haversian

blood vessels

Haversian canal

Channels in bone that contain blood vessels

Haversian canals

Myofibrils contain two different proteins:

actin myosin

The chemical source of most of the body's energy

adenosine triphosphate

Bones associated with the arms and legs

appendicular skeleton

A disease which can cause inflammation, stiffness, and disfigurement of the joints is called

arthritis

Inflammation of joints

arthritis

Reproduction not involving the fusion of gametes

asexual reproduction

A condition of the muscles whereby they become weak from disuse is called

atrophy

The wasting away of tissue

atrophy

Central bones --the skull, spine and ribs

axial skeleton

TOOTH CAVITIES ARE CAUSED BY :

bacteria sugar acid gum disease

A sac filled with lubricant

bursa

Inflammation of a bursa

bursitis

Inflammation of the lubricating sacs of the joints is called

bursitis

The two primary substances associated with healthy bones are vitamin D and

calcium

Tooth decay; cavities

caries

Rubbery material that forms the extension of bones

cartilage

Part of the brain that coordinates movement

cerebellum

Segments of the DNA molecule which contain the genes for the traits

chromosome

Collar bone

clavicle

The pectoral girdle includes the ________ and the _______

clavicles scapulae

Muscular dystrophy is associated with:

degeneration of muscle cells

The bony inner substance of teeth

dentine

The hard outer covering of teeth

enamel

A narrow coiled structure attached to the testis which stores sperm

epididymis

A muscle that straightens a joint

extensor

The skeletal type which operates to straighten a joint is called a ________ and the type which bends a joint is called a ______

extensor flexor

The bones of the skull are fused together at birth.

false

The uvula is commonly known as the tonsils.

false

The long bone of the upper leg is the _____.

femur

Thigh bone

femur

Small bone in the lower leg

fibula

The two lower leg bones are called the _____ and the _____.

fibula tibia

A long whiplike structure used in movement

flagellum

A muscle that bends a joint

flexor

A reproductive cell which fuses to give rise to a zygote

gamete

Inflammation of the gums

gingivitis

Organ that produces gametes

gonad

The upper arm bone is the

humerus

Upper arm bone

humerus

One of the two upper wing bones of the pelvis

ilium

The most forward two teeth on the upper or lower mouth are:

incisors

The point where the muscle attaches to the more movable bone in the joint

insertion

Operate without your help

involuntary

The patella is a bone associated with the:

knee

Bone to bone connective tissue

ligament

Tough straps of connective tissue that hold joints together

ligament

Straps of connective tissue which holds bones together at the joints are:

ligaments

The mandible is the

lower jaw bone

The condition of paralysis is usually attributed to:

malfunction of the nervous system

Jaw bone

mandible

central hollow shaft

marrow cavity

Bone that holds the upper teeth

maxilla

The process that produces sperm and eggs by dividing the chromosome number in half

meiosis

Cell division that produces two identical daughter cells

mitosis

Birth defects that cause muscles to malfunction

muscular dystrophy

Components of a muscle

myofibrils

The muscle cells contain fibrous proteins called

myofibrils

One of the two proteins involved with muscle contraction

myosin

(Select all that apply.) Choose the parts of the body which incorporate cartilage.

nose trachea ears larynx

The point where the muscle attaches to the less movable bone in the joint

origin

The female gonad which produces eggs and some sex hormones

ovary

Top of the mouth

palate

Inability to move

paralysis

Knee cap

patella

The bones which support the bones of the arms.

pectoral girdle

The bones which support the bones of the legs.

pelvic girdle

Advanced disease of the soft tissues that support the teeth

peridontitis

Protective covering of bone

periosteum

The thin tissue that covers bone

periosteum

A viral infection of the spinal cord that produces paralysis

poliomyelitis

The function(s) of the sternum is(are) to:

protect the heart connect the ribs

The bone that joins the two halves of the pelvis in front

pubis

The nerve fibers and blood vessels of a tooth are located in the:

pulp cavity

The portion of a tooth that gives you pain when the dentist drills your teeth is called the

pulp cavity

A forearm bone

radius

The production of blood cells is associated with:

red marrow

makes blood cells

red marrow

The bone that forms the lower end of the spine and joins the pelvis in the back

sacrum

Shoulder blade

scapula

Match the muscles and their associations. involuntary voluntary electrical nodes tendons digestive tract arteries extensors

smooth skeletal cardiac skeletal smooth smooth skeletal

Overactive, uncoordinated muscles

spasticity

(Select all that apply.) Choose from the following the primary functions of the skeletal system.

support movement protection production of blood cells

muscle to muscle connective tissue

tendon

Large bone in the lower leg

tibia

Lymph nodes at the back of your mouth

tonsil

The two bones of the lower arm are the

ulna and radius

Fleshy projection hanging down from the back of the soft palate

uvula

vertebrae, The bones of the spine

vertebra

The bones that enclose the spinal cord are called the

vertebrae

Under your conscious control

voluntary

The third molar at the back of the mouth is called the ______ tooth.

wisdom

fat cells

yellow marrow


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