Chapter 6: Anatomy and Physiology Flashcards
anatomy
the study of body structure
physiology
the study of body function
thyroid cartilage
the wing-shaped plate of cartilage that sits anterior to the larynx and forms the Adam’s apple
musculoskeletal system
the system of bones and skeletal muscles that support and protect the body and permit movement
skeleton
the bones of the body
muscle
tissue that can contact to allow movement of a body part
ligaments
tissue that connects bone to bone
tendon
tissue that connects muscle to bone
Respiratory structure
Nasal cavity, pharynx, larynx, trachea, brachial tubes, lungs
respiratory function
obtains oxygen and removes carbon dioxide from the body
cardiovascular structure
Heart, Arteries, Veins
cardiovascular function
Pumps blood throughout the entire body to transport nutrients, oxygen, and wastes
nervous structure
brain, spinal cord, nerves
nervous function
Receives sensory information and coordinates the body’s response
digestive structure
oral cavity, pharynx, esophagus, stomach, small intestine, large intestine (colon), liver, gallbladder, pancreas
digestive function
Ingests, digests, and absorbs nutrients for the body.
integumentary structure
skin, hair, nails, sweat gland
integumentary function
Forms a protective barrier and aids in temperature regulation.
endocrine structure
the pituitary gland, pineal gland, thyroid gland, parathyroid glands, thymus glands, adrenal glands, pancreas, testes, ovaries
endocrine function
regulates metabolic/hormonal activities of the body
renal structure
kidneys, ureters, urinary bladder, urethra
renal function
Filters waste products out of the blood and removes them from the body.
male reproductive structure
testes, epididymis, vas deferens, penis, seminal vesicles, prostate gland
male reproductive function
produce sperm for reproduction
female reproductive structure
ovaries, fallopian tubes, uterus, vagina, vulva, breasts
female reproduction function
Produces eggs for reproduction and provides place and nutrients for growing baby.
bones of the skull
cranium, mandible, maxillae, nasal bones, orbits, zygomatic arches
cranium
the top, back, and sides of the skull
mandible
the lower jaw-bone
maxillae
the two fused bones forming the upper jaw
nasal bones
the nose bones
orbits
the bony structure around the eye and the eye structure
zygomatic arches
the bone that forms the structure of the cheeks
vertebrae
the thirty-three bones of the spinal column; contain a hollow center for the spinal cord
cervical vertebrae
neck; 7
thoracic vertebrae
thorax, rubs, upper back; 12
lumbar
lower back; 5
sacral
the back wall of pelvis; 5
coccyx
tailbone; 4
thorax
chest
sternum
breastbone
manubrium
the superior portion of the sternum
xiphoid process
the inferior portion of the sternum
pelvis
the basin-shaped bony structure that supports the spine and is the point of proximal attachment for the lower extremities
ilium
the superior and widest portion of the pelvis.
ischium
the lower, posterior portions of the pelvis
pubis
the medial anterior portion of the pelvis
acetabulum
the pelvic socket into which the ball at the proximal end of the femur fits to form the hip joint. (the socket of the hip joint)
femur
the large bone of the thigh
patella
the kneecap
tibia
the medial and larger bone of the lower leg
fibula
the lateral and smaller bone of the lower leg
malleolus
the protrusion on the side of the ankle
tarsal
the ankle bone
metatarsal
the foot bone
calcaneus
the heel bone
phalanges
the toe bones and finger bones
bones of the shoulder
clavicle, scapular, proximal humerus, acromion process, acromioclavicular joint
clavicle
the collarbone
scapula
the shoulder blade
acromion process
the highest portion of the shoulder
Acromioclavicular joint
the joint where the acromion and the clavicle meet
humerus
the bone of the upper arm, between the shoulder and the elbow
radius
the lateral bone of the forearm
ulna
the medial bone of the forearm
carpals
the wrist bone
metacarpals
the hand bone
voluntary muscles
the muscle that can be consciously controlled
involuntary muscles
the muscle that responds automatically to brain signals but cannot be consciously controlled (gastrointestinal system, lungs, blood vessels, urinary system)
Cardiac muscle
specialized involuntary muscle found only in the heart. can only tolerate very short periods; automaticity
automaticity
the ability of the heart to generate and conduct electrical impulses on its own.
Respiratory system
the system of nose, mouth, throat, lungs, and muscles that brings oxygen into the body and expels carbon dioxide. Also called the pulmonary system
oropharynx
the area directly posterior to the mouth
nasopharynx
the area directly posterior to the nose
epiglottis
a leaf-shaped structure that prevents food and foreign matter from entering the trachea.
larynx
the voice box
cricoid cartilage
the ring-shaped structure that forms the lower portion of the larynx
trachea
“windpipe” the structure that connects the pharynx to the lungs
lungs
the organs where the exchange of atmospheric oxygen and waste carbon dioxide take place
bronchi
the two large sets of branches that come off the trachea and enter the lungs. There are right and left bronchi
alveoli
the microscopic sacs of the lungs where gas exchange with the bloodstream takes place.
diaphragm
the muscular structure that divides the chest cavity from the abdominal cavity. A major muscle of respiration.
Pharynx
the area directly posterior to the mouth and nose. It is made up of the oropharynx and the nasopharynx.
inhalation
an active process in which the intercostal (rib) muscles and the diaphragm contract, expanding the size of the chest cavity and causing air to flow into the lungs. (negative pressure)
exhalation
a passive process in which the intercostal (rib) muscles and the diaphragm relax, causing the chest cavity to decrease in size and air to flow out of the lungs (positive pressure)
ventilation
the process of moving gases (oxygen and carbon dioxide) between inhaled air and the pulmonary circulation of blood
respiration
the process of moving oxygen and carbon dioxide between circulating blood and the cells
cardiovascular system
the system made up of the heart (cardio) and the blood vessels (vascular)
artery
the two upper chambers of the heart. There is a right atrium (which receives unoxygenated blood returning from the body) and a left atrium (which receives oxygenated blood returning from the lungs)
coronary arteries
blood vessels that supply the muscle of the heart (myocardium).
pulmonary artery
the vessels that carry deoxygenated blood from the right ventricle of the heart to the lungs.
aorta
the largest artery in the body. It transports blood from the left ventricle to begin systemic circulation.
carotid artery
the large neck arteries, one on each side of the neck, that carry blood from the heart to the head.
femoral artery
the major artery supplying the leg.
brachial artery
artery of the upper arm; the site of the pulse checked during infant CPR.
radial artery
artery of the lower arm; the artery felt when taking the pulse at the thumb side of the wrist.
posterior tibial artery
artery supplying the foot, behind the medial ankle.
dorsalis pedis artery
artery supplying the foot, lateral to the large tendon of the big toe.
arteriole
the smallest kind of artery
capillaries
a thin-walled, microscopic blood vessel where the oxygen/carbon dioxide and nutrient/waste exchange with the body’s cells takes place.
venule
the smallest kind of vein.
vein
any blood vessel returning blood to the heart.
pulmonary veins
the vessels that carry oxygenated blood from the lungs to the left atrium of the heart.
plasma
the fluid portion of the blood.
red blood cells
components of the blood. They carry oxygen to and carbon dioxide away from the cells.
white blood cells
components of the blood. They produce substances that help the body fight infection.
5 types of white blood cells
® Eosinophil ® Basophil ® Monocyte ® Lymphocyte Neutrophil
platelets
components of the blood; membrane-enclosed fragments of specialized cells
pulse
the rhythmic beats caused as waves of blood move through and expand the arteries
peripheral pulses
the radial, brachial, posterior tibial, and dorsalis pedis pulses, which can be felt at peripheral (outlying) points of the body
central pulse
the carotid and femoral pulses, which can be felt in the central part of the body
blood pressure
the pressure caused by blood exerting force against the walls of blood vessels. Usually arterial blood pressure (the pressure in an artery) is measured.
systolic blood pressure
the pressure created in the arteries when the left ventricle contracts and forces blood out into circulation.
diastolic blood pressure
the pressure in the arteries when the left ventricle is refilling.
perfusion
the supply of oxygen and nutrients to and removal of wastes from the cells and tissues of the body as a result of the flow of blood through the capillaries.
hypoperfusion
the inability of the body to adequately circulate blood to the body’s cells to supply them with oxygen and nutrients. A life-threatening condition. Also called shock.
artia
two upper chambers of the heart
ventricles
the two lower chambers of the heart
venae cavae
superior & inferior; These two major veins return blood from the body to the right atrium.
valve
a structure that opens and closes to permit the flow of a fluid in only one direction.
cardiac conduction system
a system of specialized muscle tissues that conduct electrical impulses that stimulate the heart to beat.
lymphatic system
the system composed of organs, tissues, and vessels that help to maintain the fluid balance of the body and contribute to the body’s immune system
Nervous system
the system of brain, spinal cord, and nerves that govern sensation, movement, and thought
central nervous system
the brain and spinal cord
peripheral nervous system
the nerves that enter and leave the spinal cord and travel between the brain and organs without passing through the spinal cord
autonomic nervous system
the division of the peripheral nervous system that controls involuntary motor functions.
digestive system
system by which food travels through the body and is digested, or broken down into absorbable forms
stomach
muscular sac between the esophagus and the small intestine where digestion of food begins
small intestine
the muscular tube between the stomach and the large intestine, divided into the duodenum, the jejunum, and the ileum, which receives partially digested food from the stomach and continues digestion. Nutrients are absorbed by the body through its walls.
large intestine
the muscular tube that removes water from waste products received from the small intestine and moves anything not absorbed by the body toward excretion from the body.
liver
the largest organ of the body, which produces bile to assist in breakdown of fats and assists in the metabolism of various substances in the body
gallbladder
a sac on the underside of the liver that stores bile produced by the liver
pancreas
a gland located behind the stomach that produces insulin and juices that assist in digestion of food in the duodenum of the small intestine.
spleen
an organ located in the left upper quadrant of the abdomen that acts as a blood filtration system and a reservoir for reserves of blood
appendix
a small tube located near the junction of the small and large intestines in the right lower quadrant of the abdomen, the function of which is not well understood. Its inflammation, called appendicitis, is a common cause of abdominal pain.
integumentary system
skin
skin
the layer of tissue between the body and the external environment.
Function of skin
protection, water balance, temperature regulation, excretion, shock absorption
3 layers of skin
epidermis, deris, subcutaneous
epidermis
the outer layer of skin.Contains no blood vessels or nerves
dermis
the inner (second) layer of skin, rich in blood vessels and nerves, found beneath the epidermis
subcutaneous layer
the layers of fat and soft tissues found below the dermis
renal system
the body system that regulates fluid balance and the filtration of blood. Also called the urinary system
kidney
organs of the renal system used to filter blood and regulate fluid levels in the body
bladder
the round saclike organ of the renal system used as a reservoir for urine
ureters
the tubes connecting the kidneys to the bladder
urethra
tube connecting the bladder to the vagina or penis for excretion of urine
reproductive system
the body system that is responsible for human reproduction
testes
the male organ of reproduction used for the production of sperm
penis
the organ of the male reproduction responsible for sexual intercourse and the transfer of sperm
ovaries
egg-producing organs within the female reproductive system.
uterus
female organ of reproduction used to house the developing fetus
vagina
the female organ of reproduction used for both sexual intercourse and as an exit from the uterus for the fetus
The difference in respiratory anatomy of children
○ Smaller nose and mouth
○ More space is taken up by the tongue
○ Cricoid cartilage is less rigid and less developed
○ Airway structures are more easily obstructed