Transcript FETAL PIG DESIGN: ANATOMY

FETAL PIG DESIGN:
ANATOMY
There are two basic kinds of “cutting.”
Sharp dissection – cutting with a scalpel or
scissors.
• What are the advantages and disadvantages?
• When should we use sharp dissection?
Blunt dissection – separating tissues with a
blunt probe, scalpel handle, or fingers.
• What are the advantages and disadvantages?
• When should we use blunt dissection?
There are two anatomical
approaches to dissection
• Regional anatomy – dissection to study
the “regions” of the body – head and neck,
thorax, abdominal cavity, legs, etc.
• Systemic anatomy – dissection to study
the body system: musculoskeletal,
digestive, respiratory, etc.
• We will use a hybrid combination of
approaches.
cheek
Find:
M
SG
• Masseter
• Submandibular
salivary gland
Cheek
Some superficial muscles
More superficial muscles
Neck and thorax
•
•
•
•
•
•
•
•
Find:
Trachea and larynx
Thyroid gland
Thymus
Heart: left and right
auricles
Pulmonary artery trunk
Anterior vena cava
Common carotid artery
and vagus nerve
Jugular vein
Neck
and
thorax
Neck and thoracic cavity
Find:
• Trachea
• Thyroid gland
• L and R auricles of
heart
• Pulmonary trunk
• Anterior vena cava
• Common carotid and
vagus nerve
Neck and thoracic cavity
Thoracic cavity
•
•
•
•
•
Find:
Esophagus
Lung
Diaphragm
Aorta
Intercostal
a. and v.
Thoracic cavity
Upper abdominal region
Upper abdominal region
Find:
• Body and
pylorus of
stomach
• Greater and
lesser curvatures
of stomach
• Gall bladder
• Cystic duct
• Common bile
duct
Abdominal cavity
•
•
•
•
•
•
•
•
•
•
Find:
Liver
Spleen
Small intestines
Spiral colon
Rectum
Mesentery
Kidney
Ureter
Uterus (horn)
Ovary
Abdominal cavity
Abdominal cavity
•
•
•
•
•
•
•
•
•
•
Find:
Liver
Umbilical vein
Spleen
Pancreas
Small intestine
Mesentery
Spiral colon
Rectum
Kidney
Ureter
Abdominal cavity
Abdominal viscera
•
•
•
•
•
•
•
•
Find:
Liver
Stomach
Greater omentum
Spleen
Small intestines
Mesentery
Mesenteric lymph
nodes
Spiral colon
Abdominal cavity: male pig
•
•
•
•
•
•
•
Find:
Liver and spleen
Stomach
Pancreas
Small intestines and
mesentery
Spiral colon
Kidney and ureter
Vas deferens
Abdominal cavity
Male pig
Abdominal viscera
Female pig
(colon retracted)
•
•
•
•
•
•
•
Find:
Small intestine
Cecum
Spiral colon
Kidney and ureters
Horns of uterus
Fallopian tube
Ovaries
Think…
Female pig
(colon retracted)
Female viscera
Find:
•
•
•
•
•
•
Body of uterus
Uterine horns
Fallopian tubes
Ovaries
Bladder
Umbilical artery
Female viscera
Think…
The human uterus has a body but no horns. Why does
it make biological sense that pigs, dogs, and cats
have uteri with two well-developed horns?
Male pig
Find:
•
•
•
•
•
•
Kidney and ureter
Rectum
Urinary bladder
Testis
Epididymis
Vas deferens
Male pig
We’re done!