TISSUES – STRUCTURE AND FUNCTIONS
(GNM 1st Year – Anatomy & Physiology)
🔴 LONG ANSWER QUESTIONS (10 MARKS)
Q1. Define tissue and explain the classification of tissues with functions.
Answer:
A tissue is defined as a group of similar cells performing a common function.
Tissues are formed when cells of the same type join together to perform a specific activity.
CLASSIFICATION OF TISSUES
The human body is made up of four basic types of tissues:
- Epithelial tissue
- Connective tissue
- Muscular tissue
- Nervous tissue
1. EPITHELIAL TISSUE
Definition:
Epithelial tissue covers the body surface, lines body cavities, and forms glands.
Functions:
- Protection
- Absorption
- Secretion
- Excretion
- Filtration
Examples: Skin, lining of intestine, glands
2. CONNECTIVE TISSUE
Definition:
Connective tissue connects, supports, binds, and protects body parts.
Functions:
- Support and binding
- Protection
- Transportation (blood)
- Storage (fat)
- Defense against infection
Examples: Bone, blood, cartilage, tendons, ligaments
3. MUSCULAR TISSUE
Definition:
Muscular tissue is responsible for movement of the body and internal organs.
Functions:
- Body movement
- Maintenance of posture
- Heat production
Types:
- Skeletal muscle – voluntary
- Smooth muscle – involuntary
- Cardiac muscle – involuntary (heart)
4. NERVOUS TISSUE
Definition:
Nervous tissue is specialized to receive stimuli and transmit nerve impulses.
Functions:
- Receives stimuli
- Conducts impulses
- Controls and coordinates body activities
Location: Brain, spinal cord, nerves
CONCLUSION (IMPORTANT FOR 10 MARKS)
Thus, tissues are structurally and functionally specialized, and each type of tissue plays a vital role in maintaining normal body function.
Q2. Describe epithelial tissue with its characteristics and functions.
Answer:
Epithelial tissue is a tissue that covers body surfaces, lines cavities, and forms glands.
CHARACTERISTICS OF EPITHELIAL TISSUE
- Cells are closely packed
- Very little intercellular space
- No blood supply
- Rests on basement membrane
- Shows rapid regeneration
FUNCTIONS OF EPITHELIAL TISSUE
- Protection (skin)
- Absorption (intestine)
- Secretion (glands)
- Excretion
- Filtration
🟠 SHORT ANSWER QUESTIONS (5 MARKS)
Q1. Define tissue.
A tissue is a group of similar cells performing a common function.
Q2. Name the four types of tissues.
The four basic types of tissues are:
- Epithelial tissue
- Connective tissue
- Muscular tissue
- Nervous tissue
Q3. Write the functions of epithelial tissue.
Functions:
- Protection
- Absorption
- Secretion
- Excretion
- Filtration
Q4. Write a short note on connective tissue.
Connective tissue connects, supports, and protects body parts.
It helps in support, transport, storage, and defense.
Examples include bone, blood, cartilage, tendons, and ligaments.
Q5. Write a short note on muscular tissue.
Muscular tissue helps in movement of the body and organs.
It has the ability to contract.
Types include skeletal, smooth, and cardiac muscles.
Q6. Write a short note on nervous tissue.
Nervous tissue receives stimuli and transmits nerve impulses.
It controls and coordinates body activities.
It is found in the brain, spinal cord, and nerves.
Q7. Write the functions of connective tissue.
Functions:
- Support and binding
- Protection
- Transportation
- Storage
- Defense against infection.
- 📘 Read Theory: Tissues – Structure and Functions | GNM 1st Year Anatomy Notes
- 👉 Practice MCQs: MCQs on Tissues – Structure and Functions (GNM)
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