Rutger Functional Human Anatomy Lab 5 (Abdominal Musculature, Digestive System, Abdominal Structures)

aponeurosis of external oblique

sheetlike tendon

External Abdominal Oblique

fibers fun medially

unilateral: same side lateral flexion, opposite side lateral rotation

bilateral: flexion of lumbar spine

Internal Abdominal Oblique

fibers run laterally

unilateral: same side lateral flexion, same side lateral rotation

bilateral: flexion of lumbar spine

Transverse Abdominus

fibers run transversely

bilateral: compression of abdominal cavity

Rectus Abdominus

muscle bisected with tendinous insertions (segmented)

rectus sheath

pocket formed by tendons that rectus abdominus travels

semilunar line

lateral border of rectus abdominis

linea alba

tendinous intersection ligament

Pyramidales

- tenses the linea alba

foreamen magnum

Spinal cord passes through an opening in the occipital bone

occipital condyles

articulate with first cervical vertebra C1 the atlas

soft palate

uvula

root of tongue

epiglottis

A flap of tissue that seals off the windpipe and prevents food from entering (cartilage)

aditus

inlet of larynx

vocal folds

Pharynx 3 regions

nasopharynx, oropharynx, laryngopharynx

esophagus

seen in coronal section, and travels thru thoracic cavity and behind the pericardium

Diaphragm

where esophagus ends and stomach begins

falciform ligament

attaches liver to anterior abdominal wall and diaphragm

spleen

B in the picture near the stomach

regions of the stomach

- cardiac region (from esophagus)

- body

- pyloric region (attaches to descending duodenum by pyloric sphincter)

small intestine structure

descending duodenum , horizontal duodenum in retroperitoneal, ascending duodenum, jejunum (left), ileum (right)

flexure

where intestine anchor to abdominal wall

flexure between duodenum and jejunum

duodenojejunal flexure

ileo-cecal sphincter

located between the ileum and the cecum

cecum

first part of the large intestine

vermiform appendix

hangs from the lower portion of the cecum

large intestine (colon) structure

cecum, ascending, transverse, descending, sigmoid

Flexures of the large intestine

hepatic flexure (between ascending and transverse colon)

splenic flexure (between transverse and descending colon)

sigmoidal flexure (between descending and sigmoid colon)

rectum

internal and external anal sphincter

greater omentum

attaches to greater curve of the stomach and contaisn the transverse colon

lesser omentum

occupies the space between the lesser curve and the liver and consists of 2 ligaments

mesentery

smooth fat attached to large and small intestine

Kidneys

adrenal (suprarenal) glands

paired, pyramid-shaped organs atop the kidneys

ureter

The tubes that carry urine from the kidneys to the bladder.

bladder

uterus and related structures

prostate gland