Final study guide Flashcards
Abduction
Moving body part away from midline
Abdominal cavity
Contains the stomachs, much of the large intestine, appendix, gallbladder, pancreas, spleen
Adduction
Moving body part towards the midline
Afferent nerves
Sensory nerves, carry messages from all parts of the body to the brain and the spinal cord.
Adipose tissue
type of soft connective tissue is adipose, or fatty,
tissue, which stores fat as a food reserve or source
of energy, insulates the body, fills the area between
tissue fibers, and acts as padding.
Amphiarthrosis
Joint. slightly movable; examples
include the attachment of the ribs to the tho-
racic vertebrae and the symphysis pubis, or
joint between the two pelvic bones
Anatomical position
This
means the body is facing forward, standing erect,
and holding the arms at the sides with the palms
of the hands facing forward.
Anatomy
is the study of the form and
structure of an organism.
Anterior
Or ventral cavity or front cavities, contains the thoracic cavity, the diaphragm, abdominal cavity, pelvic cavity
Aorta
Largest artery of the heart
Aortic valve
is located between the left ventricle and the aorta,
the largest artery in the body. It closes when the
left ventricle is fi nished contracting, allowing
blood to fl ow into the aorta and preventing blood
from fl owing back into the left ventricle.
Apnea
is a condition in which an individual stops breathing while asleep, causing a measurable decrease in blood oxygen levels.
Anachroid membrane
One of the three layers that protect the brain and spinal cord.The
middle layer ,delicate and weblike.It is loosely attached to
the other meninges to allow space for fluid to
flow between the layers.
Arteries
carry blood away from
the heart. The aorta is the largest artery in the
body; it receives the blood from the left ventricle
of the heart.
Arterioles
The smallest branches of arteries are called. They join with capillaries.
Axon
Single nerve fiber that is pretty much the tail of the neuron
Basophils
participate in the body’s inflammatory response; produce histamine, a vasodilator, and heparin, an anticoagulant
Biceps bracci
Upper arm, Flexes lower arm and supinates hand
Bicuspid(mitral )valve
is located between the left atrium and left ventri-
cle. It closes when the left ventricle is contracting,
allowing blood to fl ow into the aorta (for transport
to the body) and preventing blood from fl owing
back into the left atrium.
Buccal cavity
Cavity of the mouth. For the teeth and the tongue.
Capillaries
Connect arterioles with venules, the smallest veins. Capillaries are located in close proximity to almost every cell in the body. They have thin walls that contain only one layer of cells. These thin walls allow oxygen and nutrients to pass through to the cells and allow carbon
dioxide and metabolic products from the cells to enter the capillaries.
Cardiac muscle
Cause the heart to beat
Cardiac sphincter
a circular muscle between
the esophagus and stomach, closes after food
enters the stomach and prevents food from going
back up into the esophagus.
Cataract
Lenses of the eye become foggy
Cellular respiration
The cells then use the
oxygen and nutrients to produce energy, water,
and carbon dioxide.
Centrosome
located in the cytoplasm and
near the nucleus. It contains two centrioles.
During mitosis, or cell division, the centrioles
separate. Thin cytoplasmic spindle fi bers form
between the centrioles and attach to the chro-
mosomes. This creates an even division of the
chromosomes in the two new cells.
Cerebellum
the section below the back of
the cerebrum. It is responsible for muscle
coordination, balance, posture, and muscle
tone.
Cerebrum
the largest and highest section of the brain. The outer part is arranged in folds, called convolutions, and separated into lobes. The lobes include the frontal, parietal, temporal, and occipital, named from the skull bones that surround them (fi gure 7-30). The cerebrum is responsible for reasoning, thought, memory, judgment, speech, sensation, sight,smell, hearing, and voluntary body move
ment.
Cervix of the uterus
the narrow, bottom section of the uterus which attaches to the vagina
Chromatin
located in the nucleus and made of deoxyribonucleic acid (DNA) and protein. During cell reproduction, the chromatin condenses to form rodlike structures called chromosomes.
Cilia
Tiny, hairlike structures, filter inhaled air to trap dust and other particles. The cilia then help move the mucous layer that lines the airways to push trapped particles toward the esophagus, where they can be swallowed.
Circulatory system
Carries oxygen and nutrients to body cells; carries waste products away from cells; helps produce cells
to fight infection
Includes Heart, blood vessels, blood, spleen
Circumduction
moving in a circle at a joint,
or moving one end of a body part in a circle
while the other end remains stationary, such
as swinging an arm in a circle
Cirrhosis
is a chronic destruction of liver cells
accompanied by the formation of fi brous connec-
tive and scar tissue.
Clotting proteins
fibrinogen and prothrombin
Cochlea
Part of the ear.shaped like a snail’s shell, contains delicate, hairlike cells, which compose the organ of Corti, a receptor of sound waves.
Color of blood
Red when oxygenated, blue without oxygen
Conjunctiva
Part of the eye.A mucous membrane, lines the eyelids and covers the front of the eye to provide additional protection and lubrication.
Connective tissue
is the supporting fabric of organs and other body parts. There are two main classes of it.
Contractability
The ability to contract muscles.muscle fi bers that are stimulated by nerves contract, or become short and thick, which causes movement
Contracture
a severe tightening of a fl exor muscle
resulting in bending of a joint.
Coronal plane
Or frontal plane divides the body into a front section and a back section.
Coronary artery
The first branch of the aorta is the coronary artery,
which divides into a right and left coronary artery
to carry blood to the myocardium of the heart.
Cranial cavity
Contains brain and spinal cavity
Deltoid
Shoulders origin ;abducts arm
Dendrite
Part of a neuron Carry impulses to the cell body, connected to the axon
Diaphysis
The long shaft part of the bone
Diarthrosis
or synovial: freely movable; exam-
ples include the ball-and-socket joints of the
shoulder and hip, or the hinge joints of the
elbow and knee
Diencephalon
the section located between
the cerebrum and midbrain. It contains two
structures: the thalamus and hypothalamus.
Digestive system
known as the gastro-
intestinal system, is responsible for the physical
and chemical breakdown of food so that it can be
taken into the bloodstream and used by body
cells and tissues. The system consists of the
alimentary canal and accessory organs (fi gure
Distal
Body parts that are far away from the point of reference
Example: the wrist is distal to the shoulder
Dorsal
Body parts on the back of the body
Dorsal cavity
is one long, continuous
cavity located on the back of the body. It is divided
into two sections: the cranial cavity, which con-
tains the brain, and the spinal cavity, which
contains the spinal cord.
Dura mater
Layer of the brain. is the thick, tough, outer layer.
Dyspnea
Difficulty breathing
Efferent nerves
motor, nerves carry messages from
the brain and spinal cord to the muscles and
glands.
Ejaculatory ducts
are two short tubes
formed by the union of the vas deferens and the
seminal vesicles. They carry the sperm and fl uids
known collectively as semen through the prostate
gland and into the urethra.
Elasticity
allows the muscle to return to its
original shape after it has contracted or
stretched
Embolus
is a foreign substance circulating in
the bloodstream. It can be air, a blood clot, bacte-
rial clumps, a fat globule, or other similar sub-
stances. When an embolus enters an artery or
capillary too small for passage, blockage of the
blood vessel occurs.
Endocrine system
consists of a group of
ductless (without tubes) glands that secrete sub-
stances directly into the bloodstream. These sub-
stances are called hormones. The endocrine
system consists of the pituitary gland, thyroid
gland, parathyroid gland, adrenal glands, pan-
creas, ovaries, testes, thymus, pineal body, and
placenta.
Endoplasmic reticulum
a fine network of tubular structures located in the cytoplasm. This network allows for the transport of materials into and out of the nucleus, and also aids in the synthesis and storage of proteins. Rough
endoplasmic reticulum contains ribosomes, which are the sites for protein synthesis (pro-duction). Smooth endoplasmic reticulum does not contain ribosomes and is not present in all cells. It assists with cholesterol synthesis, fat metabolism, and detoxifi cation of drugs.
Endosteum
is a membrane that lines the medullary canal and keeps the yellow marrow intact. It also produces some bone growth.
Eosinophils
remove toxins and defend the
body from allergic reactions by producing
antihistamines
Epididymis
Part of male reproductive system. is a tightly coiled tube approximately 20 feet in length and located in the scrotum and above the testes. It stores the sperm while they mature and become motile (able to move by themselves). It also produces a fl uid that becomes part of the semen (fluid released during ejaculation). connects with the next tube, the vas deferens.
Epilepsy
pilepsy, or seizure syndrome, is a brain disorder
associated with abnormal electrical impulses in
the neurons of the brain.
Epiphysis
The ends of the bones.
Epithelial tissue
covers the surface of the body and is the main tissue in the skin. It forms the lining of the intestinal, respiratory, circulatory, and urinary tracts, as well as that of other body cavities. Epithelial tissue also forms the body glands, where it specializes to produce specific secretions for the body, such as mucus and digestive juices.
erythrocytes
or red blood cells, are produced in the red bone marrow at a rate of about one million per minute. They live approximately 120 days before being broken down by the
Excitability
irritability, the ability to respond to a stimulus such as a nerve impulse
Extensibility
the ability to be stretched
Extension
increasing the angle between two bones, or straightening a body part
External respirations
is the exchange of oxygen and carbon dioxide between the lungs and bloodstream.
Factors influencing blood pressure
Look in notes
Factors influencing temperature
Look in notes
fascia
a tough, sheetlike membrane that covers and protects the tissue. Examples include the deep muscles of the trunk and back
Femoral artery
Large artery in the thigh
Flexion
decreasing the angle between two bones, or bending a body part
Fontanels
or “soft spots,” allow for the enlargement of the skull as
brain growth occurs. The fontanels are made of membrane and cartilage, and turn into solid bone by approximately 18 months of age.
Frontal plane
or coronal plane divides the body into a front section and a back section. Body parts in front of the plane, or on the front of the body, are called ventral or anterior. Body parts on the back of the body are called dorsal or posterior.
Function of bile
The liver secretes bile, which is used to emulsify fats in the digestive tract. Bile also makes fats water soluble, which is necessary for absorption.
Function of thrombocytes
also called platelets, are usually described as fragments or pieces of cells because they lack nuclei and vary in shape and size. They are important for clotting of blood.
Gastrocnemius
Back of the lower leg. Flexes and supinate so sole of the lower foot
Gluteus Maximus
Buttocks. Extends and rotates thigh
Golgi apparatus
a stack of membrane layers located in the cytoplasm. This structure
produces, stores, and packages secretions for discharge from the cell. Cells of the salivary, gastric, and pancreatic glands have large numbers of them