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Questions and Answers
During which phase of the cell cycle does DNA replication occur?
During which phase of the cell cycle does DNA replication occur?
- Prophase
- S (correct)
- G1
- G2
What is the primary function of skeletal muscle tissue?
What is the primary function of skeletal muscle tissue?
- Regeneration
- Protection against microorganisms
- Voluntary movement (correct)
- Internal communication
Which type of epithelial tissue is found in the alveoli of the lungs?
Which type of epithelial tissue is found in the alveoli of the lungs?
- Simple Columnar
- Simple Squamous (correct)
- Stratified Squamous
- Cuboidal
What is the term for cells that permanently cease dividing?
What is the term for cells that permanently cease dividing?
What is the primary function of cardiac muscle tissue?
What is the primary function of cardiac muscle tissue?
Which type of tissue forms boundaries between different environments?
Which type of tissue forms boundaries between different environments?
What is the characteristic of epithelial tissue that allows it to heal quickly?
What is the characteristic of epithelial tissue that allows it to heal quickly?
What is the term for the process of cell division?
What is the term for the process of cell division?
Which type of epithelium is found in the trachea?
Which type of epithelium is found in the trachea?
What is the characteristic of stratified epithelium?
What is the characteristic of stratified epithelium?
What is the function of the cilia in the pseudo-stratified columnar epithelium?
What is the function of the cilia in the pseudo-stratified columnar epithelium?
What is the main characteristic of loose connective tissue?
What is the main characteristic of loose connective tissue?
Which type of connective tissue is found in the walls of many large arteries?
Which type of connective tissue is found in the walls of many large arteries?
What is the main difference between thick and thin skin?
What is the main difference between thick and thin skin?
What is the function of connective tissue?
What is the function of connective tissue?
What type of epithelium is found on the skin?
What type of epithelium is found on the skin?
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Study Notes
Cell Cycle
- The cell cycle has two major periods: Interphase and Cell Division
- Interphase: cell grows, carries out usual activities, and prepares for cell division
- Interphase consists of three subphases: G1 (vigorous growth and metabolism), S (DNA replication), and G2 (preparation for division)
- Cell division (mitotic phase): cell divides into two, consisting of Prophase, Metaphase, Anaphase, Telophase, and Cytokinesis
Tissues
Nervous Tissue
- Internal communication
- Found in brain, spinal cord, and nerves
- Doesn't regenerate
Muscle Tissue
- Contracts for movement
- Types: Skeletal (voluntary movement, locomotion, facial expression), Cardiac (involuntary control, propels blood into circulation)
Epithelial Tissue
- Forms boundaries between different environments
- Found on skin surface, lining of digestive tract, sensory organs, and glands
- Has polarity, regenerates quickly
- Shapes: Squamous, Cuboidal, Columnar
- Types:
- Simple Columnar (e.g., small intestine)
- Simple Squamous (e.g., alveoli in lungs)
- Stratified Squamous (e.g., skin, trachea)
- Pseudo-Stratified Columnar (e.g., trachea)
- Stratified Squamous Keratinized (e.g., skin with keratin)
Connective Tissue
- Supports and protects other tissues
- Types:
- Connective tissue proper:
- Loose connective tissue (e.g., Aerolar, Adipose, Reticular)
- Dense connective tissue (e.g., Dense Regular, Dense Irregular, Elastic)
- Supporting connective tissue:
- Cartilage (e.g., Hyaline cartilage)
- Connective tissue proper:
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