Chapter 1 Terms: Relative positions of anatomical structures, Body sections, and Body regions

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Superior

A part above another part.

Inferior

A part below another part.

Anterior

Towards the front.

Posterior

Towards the back.

medial

Closer to the center than the part it is being compared to.

Lateral

Farther from the center than the part it is being compared to.

Bilateral

Refering to paired structures, one on each side.

Ipsilateral

Refering to structures on the same side of the imaginary midline.

Contralateral

Refers to structures on oposite sides.

Proximal

Refers to a part closer to the torso than another part.

Distal

Refers to a part farther than the part being compared to from the torso.

Superficial/Peripheral

Close to the skin or surface.

Deep

Describes internal parts.

Sagittal section

Refers to a lengthwise cut that divides the body into equal left and right portions.

Traverse section

Cut that divides body into superior and inferior portions.

Frontal section

Cut that divides the body into anterior and posterior portions.

Epigastric region

The upper middle portion. (the middle portion refers to the section inbetween the lungs and the pelvis)

Left and Right hypochondriac regions

The sections on the left and right of the epigastric region.

Umbilical Region

The central portion of the middle section.

Left and right lumbar regions

The sections on the left and right of the umbilical region.

Hypogastric region

The lower middle region.

Left and right iliac regions

The sections on the left and the right of the Hypogastric region.

abdominal

region between the thorax and pelvis.

acromial

point of the shoulder

antebracheal

forearm

antecubital

space in front of the elbow

axillary

armpit

brachial

arm

buccal

cheek

carpal

wrist

celiac

abdomen

cephalic

head

cervical

neck

costal

ribs

crural

leg

cubital

elbow

digital

finger or toe

dorsum

back

femoral

thigh

frontal

forehead

genital

reproductive organs

gluteal

buttocks

inguinal

groin

lumbar

region of the lowerback between the ribs and pelvis.

mammary

breast

mental

chin

nasal

nose

occiptial

lower posterior region of the head (the area containing the occipital lobe)

oral

mouth

orbital

eye cavity

palmar

palm of the hand

patellar

front of the knee

pectoral

chest

pedal

foot

pelvic

pelvis

perineal

region the anus and the reproudctive organs.

plantar

sole of the foot

popliteal

area behind the knee

sacral

posterior region between the hipbones.

sternal

middle of the thorax (anteriorly)

sural

calf of the leg

tarsal

instep of the foot

umbilical

navel

vertebral

spinal column

Thoracic cavity

cavity of the thorax containing the lungs

Pelvic cavity

cavity of organs between the pelvis

Cranial cavity

cavidy in the head containing the brain

Mediastinum

Chamber in the thorax between the pleural cavites containing the heart

Vertebral canal

the cavity along the vertebrea containing the spinal chord

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