A&P I Exam 2 Review (Chapters 5–8) – Guided Study Notes

Q1. What are the functions of the skin?

Background

Topic: Integumentary System – Skin Functions

This question tests your understanding of the various roles the skin plays in maintaining homeostasis and protecting the body.

Key Terms:

• Protection

• Thermoregulation

• Sensation

• Excretion

• Vitamin D synthesis

Step-by-Step Guidance

1. List the main protective functions of the skin (e.g., barrier against pathogens, UV radiation, dehydration).

2. Consider how the skin helps regulate body temperature (think about sweat glands and blood vessels).

3. Think about the sensory receptors present in the skin and what sensations they detect.

4. Recall how the skin is involved in excretion and vitamin D production.

Try solving on your own before revealing the answer!

Q2. What are the tissues that make up the skin?

Background

Topic: Skin Structure – Tissue Types

This question asks you to identify the main tissue types found in the skin and their locations.

Key Terms:

• Epithelial tissue (epidermis)

• Connective tissue (dermis, hypodermis)

Step-by-Step Guidance

1. Identify the outermost layer of the skin and the type of tissue it is composed of.

2. Determine what tissue types are found in the deeper layers (dermis and hypodermis).

3. Consider the functions of each tissue type in the skin.

Try solving on your own before revealing the answer!

Q3. What are the layers of the skin?

Background

Topic: Skin Anatomy – Layers

This question tests your knowledge of the main structural layers of the skin.

Key Terms:

• Epidermis

• Dermis

• Hypodermis (subcutaneous layer)

Step-by-Step Guidance

1. List the main layers of the skin from superficial to deep.

2. Briefly describe the general characteristics of each layer.

3. Consider which layers are technically part of the skin and which are associated structures.

Try solving on your own before revealing the answer!

Q4. What tissues are each of the layers of the skin made of?

Background

Topic: Skin Histology

This question requires you to match each skin layer with its primary tissue type.

Key Terms:

• Stratified squamous epithelium (epidermis)

• Areolar and dense irregular connective tissue (dermis)

• Adipose and areolar connective tissue (hypodermis)

Step-by-Step Guidance

1. Recall the tissue type that makes up the epidermis.

2. Identify the two main layers of the dermis and their tissue types.

3. Determine the tissue types found in the hypodermis.

Try solving on your own before revealing the answer!

Q5. What are the layers of the epidermis, and what is happening in each layer?

Background

Topic: Epidermal Layers and Functions

This question tests your ability to name the layers of the epidermis (especially in thick skin) and describe the main events in each layer.

Key Terms:

• Stratum basale

• Stratum spinosum

• Stratum granulosum

• Stratum lucidum (only in thick skin)

• Stratum corneum

Step-by-Step Guidance

1. List the layers of the epidermis from deepest to most superficial.

2. For each layer, briefly describe the main cellular activities (e.g., cell division, keratinization, cell death).

3. Note which layers are present only in thick skin (palms, soles).

Try solving on your own before revealing the answer!

Q6. What cell types are found in each layer of skin?

Background

Topic: Skin Cell Types

This question asks you to identify the main cell types in the epidermis and dermis, and their functions.

Key Terms:

• Keratinoctyes

• Melanocytes

• Langerhans (dendritic) cells

• Merkel (tactile) cells

• Fibroblasts (dermis)

• Macrophages (dermis)

Step-by-Step Guidance

1. List the main cell types in the epidermis and their functions.

2. Identify the main cell types in the dermis and their roles.

3. Match each cell type to the layer where it is most abundant.

Try solving on your own before revealing the answer!