BSC 2093L
HISTOLOGY
Test material for PRACTICAL I (100 points)
A. Study Exercise 6 in your lab manual.
B. Be able to: a) name each tissue by group and complete name
b) identify special features of each tissue
c) state a typical location for each tissue
d) give a general function for each tissue
Make drawings for review and study. You may also take digital photographs. During
the lab practical, most microscopes will be set with the high power objective in position.
However, the instructor will set the microscope at the power where the particular tissue
to feature is best visualized. Be sure to study all the powers up to and including high
power.
A. EPITHELIAL TISSUES:
1. Simple squamous epithelium
A. Slide shows a whole mount of tissue layer
B. Slide shows Bowman's capsule and capillary bed
2. Stratified squamous epithelium
slide shows outer layers of skin or urogenital lining
3. Simple cuboidal epithelium
slide shows walls of kidney tubules
(same slide as simple squamous epithelium (see slide in #1B)
-look near the Bowman's capsules)
4. Simple columnar epithelium
slide shows covering of intestinal villi
also observe: GOBLET CELLS--seen in some slides
5. Pseudostratified ciliated columnar epithelium
slide shows lining of trachea
also observe: CILIA
GOBLET CELLS
6. Transitional epithelium (relaxed)
slide shows wall of urinary bladder or ureter
B. CONNECTIVE TISSUES:
1. Areolar connective tissue or Loose connective tissue
note: COLLAGENOUS FIBERS
ELASTIC FIBERS
FIBROBLASTS
2. Dense regular connective tissue or White fibrous connective tissue
slide through tendon
note: dense parallel fibers
3. Adipose tissue (fat)
ADIPOCYTES
4. Reticular connective tissue
slide from lymph node
note:
LYMPHOCYTES (reddish mass of cells)
RETICULAR FIBERS (bluish color)
5. Compact bone (osseous) tissue or dense bone tissue
slide may be labeled ground bone (procedure for slide preparation but
not
the name of the tissue)
note:
HAVERSIAN CANAL
OSTEOCYTE
LAMELLA
CANALICULI
LACUNA
VOLKMANN'S CANAL (not visible in every slide-look at several student slides until you find one)
6. Spongy bone tissue or cancellous bone (osseous) tissue
note:
TRABECULAE
OSTEOCYTES
CANCELLOUS CAVITY
RED MARROW (look at others if not present on your slide)
7. Hyaline cartilage
slide through intercostal cartilage
note:
CHONDROCTYES
LACUNAE
PERICHONDRIUM (look at others if not present on your
slide)
8. Blood -- identify cell types using oil immersion
ERYTHROCYTE
LEUKOCYTE
THROMBOCYTES
C. MUSCLE TISSUES:
1. Smooth muscle tissue
observe the elongated cells with oval nuclei
see if you can identify the smooth muscle wall in simple columnar epith.
slide
2. Skeletal muscle tissue
observe the unbranched cylindrical fiber with striations
observe the placement of the nuclei along the periphery of the fiber
3. Cardiac muscle tissue
note: INTERCALATED DISCS
D. NERVOUS TISSUE:
Cell types: NEUROGLIA
NEURON
Parts of the neuron: AXON
DENDRITE
CELL BODY
SKIN
Test material for PRACTICAL I (100 points).
A. Study Exercise 7 in your lab manual.
B. Study the model of the skin (all three sections).
C. Study the slide of the human skin with hair follicle.
D. Study the major nail regions.
E. Compare sweat maps.
If a number related to the structure is on the model it is given below.
Section A -- Hairy scalp
Section B -- Arm pit
Section C -- Sole of foot (hairless skin)
Epidermis
I.
Dermis
II.
Subcutaneous layer
III.
Layers of the epidermis
Stratum corneum
Stratum lucidum
(in section C)
Stratum granulosum
Stratum spinosum
Stratum basale
Helpful nemonic: Can Lucy Get Some Bagels
Dermal papillae
Papillary layer of the dermis
Reticular layer of the dermis
Sudoriferous gland (sweat gland)
Eccrine
Apocrine
Sebaceous gland (oil gland)
Hair follicle
Hair root
Hair shaft
Arrector pili muscle
Lamellated (Pacinian) corpuscle
Corpuscle of touch (Meissner's corpuscle)
Adipose tissue