Introduction to Anatomy/Terminology Flashcards
Gross Anatomy
branch of anatomy that deals with the structure of organs and tissues that are visible to the naked eye
Systemic Anatomy
study of the structure that makes up a discrete body system
Discrete Body System
group of structures that work together to perform a unique body function
Microscopic Anatomy
study of anatomy with the use of specials aids that help visualize structures
Cytology
study of cells
Histology
study of tissues
Body Organization: 6 Distinct Levels
subatomic particles, atoms, molecules, organelles, cells, tissues, organs, organ systems, organism (human)
Integumentary System: Function
encloses internal structures, site of many sensory receptors, protects against environmental hazards, helps control temperature
Integumentary System: Major Organs
skin
Skeletal System: Function
support the body by protecting soft tissues, enable the body to move together w/ skeletal system
Skeletal System: Major Organs
bones, joints, cartilage
Muscular System: Function
provides movement and support together w/ skeletal system, helps generate heat
Muscular System: Major Organs
skeletal muscles, tendons, ligaments to which they are attached
Nervous System: Function
it detects and processes sensory information, coordinates the activities of other organ systems
Nervous System: Major Organs
brain, spinal cord, nerves
Endocrine System: Function
responsible for integration and regulation: directs long term changes in the activity of organ systems by secreting hormones that travel throughout the body and regulate those bodily processes
Endocrine System: Major Organs
glands (pituitary, thyroid, adrenal), pancreas, ovaires
Cardiovascular System: Function
distributes materials throughout the body: delivers oxygen and nutrients to tissues, helps equalize temperatures in the body by pumping blood throughout the body
Cardiovascular System: Major Organs
heart, blood vessels (associated with heart and blood that travels through those blood vessels)
Lymphatic System: Function
fluid transport, return fluid to the blood from body tissues, defends against pathogens
Lymphatic System: Major Organs
lymph nodes, spleen, thymus
Lymph nodes
where content of body fluid is monitored
Respiratory System: Function
remove carbon dioxide from the body, delivering oxygen throughout the body, gas exchange between between the air and circulating blood
Respiratory System: Major Organs
lungs, nasal cavity, trachea
Digestive System: Function
responsible for processing and digesting food for use by the body, absorbing nutrients, removes waste from undigested food
Digestive System: Major Organs
stomach, small intestine, large intestine
Digestive System: Accessory Organs
liver, gallbladder
Urinary System: Function
controls water balance in body by elimination excess water/salt/waste, controls pH, regulates blood pressure by removing fluid from body
Urinary System: Major Organs
kidneys, urinary bladder
Reproductive System: Function
produce sex cells and hormones
Reproductive System: Male Function
responsible for delivering gametes to female
Reproductive System: Female Function
responsible for supporting the embryo/fetus until birth, producing milk to support the infant after birth
Reproductive System: Male Major Organs
testes, epididymis
Reproductive System: Female Major Organs
mammary glands, ovaries, uterus
3 Divisions of the Body
body wall, body cavities, organs
Body Wall
frame work of the trunk
Body Wall includes
skin, skeleton, muscle
Extensions of the body wall
arms, head, legs
Body Cavities
internal space that holds vital organs
Largest Body Cavity
vental cavity
Body Cavity holds what organs?
digestive, urinary, respiratory organs
body cavities are inside
inside torso and abdomen
Organs
discrete structures within the body that are capable of performing specific functions
Major Body Cavities
dorsal and ventral cavity
Dorsal Cavity includes
cranial and spinal cavity
Ventral Cavity includes
thoracic and abdominopelvic
cavity
Thoracic cavity separated by
pleural and mediastinum cavity
Pleural cavity houses
left and right lung
Mediastinum Cavity
structure in between the lungs
Mediastinum cavity houses
esophagus, trachea, heart
What cavity is contained in mediastinum?
pericardial cavity
Abdominopelvic cavities
abdomen and pelvic
Abdomen Cavity holds
holds organs of digestion and some urinary system structures
Pelvic Cavity holds
holds reproductive structures and some urinary system structures
What smooth muscle separates the thoracic and abdominopelvic cavities?
diaphragm
Diaphragm
responsible for changing the dimensions of the thoracic cavity causing exhalation and inhalation
Serous Membranes
specialized membranes which which secrete a slippery fluid allowing fricitonless movement of moist organs across from one another
4 Components of Serous Membrane
- serous cavities
- serous fluid
- visceral serous membrane
- parietal serous membrane
Serous Cavities
space between two layers of membrane
Serous Fluid
Housed inside the serous cavity
Visceral Serous Membrane
membrane overlying the surface of the organ (up against guts and organs)
Parietal Serous Membrane
membrane which is touching other moving organs
Serous Membrane Examples
- around the heart: pericardium
- around the lungs: pleura
- around the digestive organs: peritoneum
Pericardium Serous Components
pericardium fluid, visceral/parietal pericardium
Pleura Serous Components
pleural space, pleural fluid, visceral/parietal pleura
The body is…
not a solid mass of cells, but one large hollow structure
Trunk
large hollow structure subdivided into small space
Cavities
hollow spaces where specialized organs are contained
Extremities
arms and legs
Standard Anatomic Position (SAP)
individual is standing upright, upper limbs at side, feet together, toes pointing forwards, face directed forwards, palms forward, thumbs lateral to the midline
Cephalic region
everything in head
Parts of the cephalic region
cranial, nasal, cervical, ocular, otic, buccal, oral region
Cranial Region
skull
Nasal Region
nose
Cervical Region
neck
Ocular Region
eye
Buccal Region
cheek
Oral Region
mouth
Axillary Region
armpit region
Brachial Region
upper part of the arm (bicep)
Antebrachial Region
forearm
Carpal Region
wrist
Manual Region
whole area of the hand
Parts of the Manual Region
palmar, digital region, pollicis
Femoral Region
thigh
Patellar Region
knee cap
Crural region
lower part of the lower limb (shin)
Pedal Region
foot
Parts of the Pedal Region
tarsal (ankle), phalangeal (toes), hallucis, plantar, calcaneal
Digital Region
fingers, toes
Thoracic Region contains
heart, lungs, mediastinum
Mammary Region
breast/pectoralis
Abdominal Region
contains abdominal cavity
Part of the Abdominal Region
umbilical region
Umbilical Region
belly button
Antecubital Region
inside of the elbow (where blood draws occur)
Pelvic Region
below abdominal region, above femoral region
Parts of the Pelvic Region
coxal, inguinal, pubic region
Coxal Region
hip
Inguinal Region
groin
Acromial Region
point of the shoulder (scapula)
Olecranal Region
posterior of the elbow
Lumbar Region
lower back
Gluteal Region
buttox
Popliteal Region
posterior knee
Sural Region
calf
Calcaneal Region
heel
Pollicis Region
thumb
Hallucis Region
big toe
Dorsal Region
whole back side
Directional/relative terminology
describing where on the body a part is in relation to something else
Superior and Inferior
refers to structures on the trunk
Superior (cranial)
towards the head
Inferior (caudal)
towards the feet
Anterior
towards the front
Posterior
towards the back
Superficial
towards the surface
Deep
towards the inside
Supine
lying on back
Prone
lying on stomach
Supinates
palms facing out
Pronated
palms facing towards the back
Medial
towards midline
Lateral
away from the midline
Proximal
close to point of attachement
Distal
far from point of attachment
Sections (planes)
sagittal, midsagittal, coronal/front, transverse sections
Saggital Section
separates left and right sides
Midsagittal
divides the body in equal left and right halves
Parasagittal
divides body/organ into unequal right and left sections
Coronal/Front section
separates the front and back
Transverse Section
separates the top from the bottom