Build a dichotomous key to all the tissues you have seen in the lab. For this, y

Question

Build a dichotomous key to all the tissues you have seen in the lab. For this, you can use any of their morphological characteristics (under the microscope) but not their physiological functions.

Tissues seen in this lab:

1) Epithelia: simple squamous, simple cuboidal, simple columnar, pseudostratified columnar, stratified squamous, stratified cuboidal and columnar, transitional, and specialized epithelia (goblet cells).

2) Connective Tissue: Adipose, Areolar, Cartilage, hyaline cartilage, fibrocartilage, elastic cartilage, bone and blood.

3) Muscle: Smooth muscles, Cardiac muscles, skeletal muscle

4) Nervous tissues: Neurons, central nervous system (CNS), satellite cells, schwann cells, ependymal cell

Explanation / Answer

Dichotomous key of tissues according to their morphological characters are shown as below:

1) Epithelial:

Simple squamous - plasma membrane and nucleus

Simple cuboidal - basement membrane and nucleus

Simple columnar - basement membrane and globet cells

Stratified squamous - stratum corneum and stratum basale

Pseudo stratified columnar - Column

stratified cuboidal - cube

columnar - cube

transitional-cube

specialised epithelia - globet cells

2) connective tissue :

Adipose - nucleus, adipocytes and fat storage vacuoles

Areolar - ground substance, collagen bundles and elastic fibers

Hyaline cartilage - lacunae, chondrocytes and ground substance

Fibrosis cartilage - collagen bundles,lacunae and chondrocytes

Elastic cartilage - perichondrium ,elastic fibres, lacunae and chondrocytes

Bone - lamella, calaniculi, central canal ,lacunae and osteocytes

Blood- red blood cells ,white blood cells, platelets and plasma

3) Muscle :

Smooth muscle - nucleus

Cardiac muscle - striations, nucleus and intercalated disc

Skeletal muscle -striations and nucleus

4) Nervous tissue :

Neurons, central nervous system, satellite cells ,schwann cells, ependymal cells: These all contains nucleus, soma and cell processes.

So according to these morphological characters, dichotomous key builds.

Related Questions

Navigate

• Browse (All)
• Browse B
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.