University:
The Master's University
Course:
LS321 | Human Anatomy
Academic year:

2024
Views:

366

Pages:

2
Author:

Alvin Bradford

Part 1: Review 1. Where will you always ﬁnd epithelial tissues? 2. What functions do simple epithelial tissues have? 3. What functions do stratiﬁed epithelial tissues have? 4. List 3 characteristic of connective tissue. 5. List the four categories of connective tissues. 6. Create an illustration of a neuron. Label the cell body, axon, dendrites, and nucleus. Cell Components 1: • What are the two main components found in all living cells of multicellular organisms, and what role does each play in cellular functions? Epithelia introduction: Describe the rules for identifying and classifying epithelial tissue to a partner or PAL instructor. Be sure to use the terms apical surface, basement membrane, layers, and shape. Epithelia 1: • Draw and label the three shapes of epithelial cells (squamous, cuboidal, and columnar) on your dry-erase board. • List the two main types of epithelial tissue based on the number of cell layers. Epithelia 2: • Explain the diﬀerence between simple squamous epithelium and stratiﬁed squamous epithelium using both written description and a simple diagram on your board. • Discuss the characteristics of pseudostratiﬁed columnar epithelium and draw a representation of its appearance. Epithelia 3: • Draw a cross-section of simple cuboidal epithelium and indicate where these epithelia are commonly found in the body. • Illustrate the appearance of stratiﬁed columnar epithelia and describe where it is found. Epithelia Case Study Scenario: A patient, John, presents with a persistent cough and diﬀiculty breathing. Upon examination, you learn John has been exposed to high levels of airborne pollutants in his workplace. Further analysis reveals a signiﬁcant decrease in the number of cilia on the apical surfaces of the columnar cells lining his respiratory tract. Questions: 1. Drawing: Using your dry-erase board, draw a cross-section of the respiratory epithelium for a healthy individual, illustrating the normal density and function of cilia on the apical surfaces. 2. Analysis: Discuss the role of cilia in the respiratory tract and how the decreased number of cilia might impact John's respiratory function. Discuss your analysis alongside your drawing with a partner or your PAL instructor.