Fall 2005

1
Fall 2005

• LAB 11
• MAMMALIAN ANATOMY
• Histology, Fetal Pig Dissection

2
Histology

• The slides you will be examining

Photos by T. Chubb/J. Trout
3
Epithelial Tissue
4
Kidney(Simple Cuboidal Epithelium)
40 x
100x
400x
5
Kidney(Simple Cuboidal Epithelium)
40 X
100 X
This is from a slightly different area of the
kidney
400 X
6
EsophagusStratified Squamous Epithelium
(non-keratinized)
7
Connective Tissue
8
Bone
9
Blood
http//www.gihealth.com/images/imgIronDeficiency2.
jpg
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Muscle Tissue
11
Skeletal Muscle
12
Cardiac Muscle
13
Smooth Muscle
100 x
40 x
400 x (ls)
400 x (cs)
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Nervous Tissue
15
Nervous Tissue
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Fetal Pig Dissection
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Dissection

• Definition The process of careful separation
  for detailed examination analysis.
• TAKE YOUR TIME!
• Look BEFORE you cut!

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Fetal Pig

• After external examination,
• make your initial cuts as
• shown
• (follow your lab manual).

http//www.ekcsk12.org/science/lelab/incisionsfeta
lpig.gif
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Internal Anatomy

• Following the lab manual,
• carefully dissect your
• specimen.
• Find all features
• listed on your
• Checklist of Structures.

http//home.satx.rr.com/christenson/Churchill20Bi
ology/dissec13.jpg
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Fetal Heart vs. Adult Heart

• Is there a difference?
• Why is there a difference?
• .Think about it!

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NORMAL HEART (Adult)

• NORMAL HEART

www.mirage-samoyeds.com/ heart.htm
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PATENT DUCTUS ARTERIOSIS
www.mirage-samoyeds.com/ heart.htm
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DEMO Sheep Heart Dissection
External Examination Use the demonstration sheep
heart to complete your Heart Diagram Handout.
http//science.tjc.edu/images/preserved_heart/cut_
heart_anterior_label.jpg
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DEMO Sheep Heart Dissection, (cross section view)
http//www.sunyniagara.cc.ny.us/val/sheep-heart-3.
jpg
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DEMO Sheep Brain (lateral view)
http//www.sunyniagara.cc.ny.us/val/sheep-brain-la
teral.jpg
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DEMO Sheep Brain (inferior view)
http//www.sunyniagara.cc.ny.us/val/sheep-brain-in
ferior.jpg
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TODAYS PLAN

• Observe histology slides (8). Sketch label on
  your Tissue Types Handout.
• (use your lab manual as a guide, Ex. 32).
• Fetal Pig Dissection done in pairs. Follow
  handout use your manual, Ex. 33, 34, 35.
  Identify all structures on the Checklist of
  Structures for the Fetal Pig Dissection.
• 3. Observe DEMOs Sheep Heart, Brain, Shark.

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Post-Lab Assignment

• To be completed TODAY (1) histology slide
  sketches, (2) I.D. pig anatomy, (3) adult heart
  diagram.
• To be turned in NEXT WEEK Lab Manual Questions
  Exercise 34, pages 573-574.

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CLEAN UP!

• Dispose of all specimens in the RED BIOHAZARD
  BAG/BOX provided.
• Wash all dissection tools set out to dry.
• Wipe down your lab bench.
• Wash your hands before leaving.