BIOL 212 Embryology & Animal tissues
Wennstrom
Goals
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Identify the following stages of development under the microscope: unfertilized egg, fertilized egg,
blastula, gastrula.
Identify the three primary embryonic tissues in a gastrula-stage embryo: ectoderm, mesoderm,
endoderm.
Identify the blastocoel and gastrocoel in the appropriate embryonic stages (frog and starfish).
In a neurula stage frog embryo (see p. 19, fig. 2.13), identify the neural plate (early neurula), neural tube
(late neurula), and notochord.
Identify somites in chicken embryos of the appropriate stage.
List the four major tissue types found in animals: epithelial tissue, connective tissue, muscle tissue, and
nervous tissue.
Diagram or describe how tissues are typically arranged in organs. The histology tutorial in this folder
and section 41.2 on pages 916-921 in your textbook may help you with this.
Be able to identify each of the tissue types, cell types, and other structures listed below on a microscope
slide. The slide #’s you see listed are suggestions as to where to find the tissues. Keep in mind that the
tissues can be found on slides not on your list, and tissues other than the one you’re looking for can be
seen on the listed slides.
Tissue
Slide #
Slide label
Where to look
Epithelial tissues
Columnar epithelium
Identify tissue, goblet cells, basement
membrane
15
17
Jejunum
Trachea
Lining lumen
Cuboidal epithelium
Identify tissue, basement membrane
23
Kidney
Lining lumen of kidney
tubules
Simple squamous epithelium
Identify tissue
Skin
Artery, vein, & nerve
Lining lumen of blood vessels
Stratified squamous
epithelium
Identify tissue, basement membrane
3
11
16
17
Esophagus
Lining lumen
Connective tissues
Areolar connective tissue
Identify tissue, fibroblasts, collagen fibers,
elastin fibers
22
Areolar tissue
Dense connective tissue
Identify tissue, fibroblasts, collagen fibers
17
Trachea/esophagus
Adipose tissue
Identify tissue, adipocytes, matrix
11
17
Artery, vein, & nerve
Trachea/esophagus
Outer edge of cartilage in the
wall of the trachea
Between trachea and
esophagus
Cartilage
Identify tissue, chondrocytes, matrix
17
Trachea/esophagus
Wall of trachea
Bone
Identify tissue, osteocytes, matrix
8
Ground bone
Blood
Identify tissue, erythrocytes, leukocytes
21
Blood smear
11
12
11
15
Artery, vein, & nerve
Striated muscle
Artery, vein, & nerve
Jejunum
10
Cardiac muscle
1
Motor neuron
Muscle tissues
Skeletal muscle
Identify tissue
Smooth muscle
Identify tissue
Cardiac muscle
Identify tissue
Nervous tissue
Nervous tissue
Identify tissue, neurons, glial cells
Blood vessel walls
Intestinal wall