What is the specific function of the cardiac muscle?
Solution and Explanation
Cardiac muscles are involuntary muscles which show characteristics of both smooth and striated muscles. These muscles occur in the walls of the heart.
Functions of Cardiac Muscles :
- Cardiac muscles contract and relax rapidly, rhythmically and tirelessly throughout life. They contract endlessly from early embryonic stage until death.
- The contraction and relaxation of heart muscles help to pump and distribute blood to various parts of body.
Top Questions on Animal Tissues
Given below are two statements:
Statement I: Ligaments are dense irregular tissue.
Statement II: Cartilage is dense regular tissue.
In the light of the above statements, choose the correct answer from the options given below:- NEET (UG) - 2023
- Biology
- Animal Tissues
Match List I with List II.
List I
List II
A Mast cells I Ciliated epithelium B Inner surface II Areolar connective tissue Of bronchiole C Blood III Cuboidal epithelium D Tubular parts IV Specialised connective tissue of nephron Choose the correct answer from the options give below:
- NEET (UG) - 2023
- Biology
- Animal Tissues
Match list I with list II:
List - I List - II (a) Bronchioles (i) Dense Regular Connective Tissue (b) Goblet Cell (ii) Loose Connective Tissue (c) Tendons (iii) Glandular Tissue (d) Adipose Tissue (iv) Ciliated Epithelium - NEET (UG) - 2022
- Biology
- Animal Tissues
- Which of the following statements wrongly represents the nature of smooth muscle?
- NEET (UG) - 2021
- Biology
- Animal Tissues
- Identify the types of cell junctions that help to stop the leakage of the substances across a tissue and facilitation of communication with neighbouring cells via rapid transfer of ions and molecules.
- NEET (UG) - 2021
- Biology
- Animal Tissues
Questions Asked in CBSE Class IX exam
- The author speaks both of people who were very aware of the differences among them and those who tried to bridge these differences. Can you identify such people in the text?
- CBSE Class IX
- My childhood
- Explain what the reasons for the following are.
(i) Einstein leaving the school in Munich for good.
(ii) Einstein wanting to study in Switzerland rather than in Munich.
(iii) Einstein seeing in Mileva an ally.
(iv) What do these tell you about Einstein?- CBSE Class IX
- A truly beautiful mind
- (i) The kind of person the doctor is (money, possessions)
(ii) The kind of person he wants to be (appearance, ambition)- CBSE Class IX
- The snake and the mirror
In Fig. 9.26, A, B, C and D are four points on a circle. AC and BD intersect at a point E such that ∠ BEC = 130° and ∠ ECD = 20°. Find ∠ BAC.
- CBSE Class IX
- Angle Subtended by an Arc of a Circle
- Name the two temples the author visited in Kathmandu.
- CBSE Class IX
- Kathmandu
Concepts Used:
Animal Tissues
Human bodies, like most animal bodies, are made up of four different types of tissue:
Epithelial Tissue:
This tissue forms the outer layer of the body and also lines many of the body's cavities where it has a protective function.
General functions of epithelial tissue:-
- Provides a barrier between the external environment and the organ that it is covering.
- Specialized to function in secretion and absorption.
- Protects organisms from microorganisms, injury, and fluid loss.
Connective Tissue:
This tissue assists in the support and protection of organs and limbs and depending on the location in the body it may join or separate organs or parts of the body.
Muscle Tissue:
This tissue enables various forms of movement, both voluntary and involuntary.
Nerve Tissue:
This tissue is responsible for the carrying of electrical and chemical signals and impulses from the brain and central nervous system to the periphery, and vice versa.