NEET Test Series from KOTA - 10 Papers In MS WORD
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BIOXI20: LOCOMOTION AND MOVEMENT
340083
Muscle fibre is a ____ as the sarcoplasm contains many nuclei.
1 Coencytic
2 Syncitium
3 Non-coenocytic
4 All of them
Explanation:
Muscle fibre is a syncytium as the sarcoplasm contains many nuclei.
BIOXI20: LOCOMOTION AND MOVEMENT
340084
For the purpose of increase of expiratory capacity which muscles are responsible from following? i. Radial muscles of diaphragm ii. External intercostals muscles iii. Internal intercoastal muscles iv. Abdominal muscles. Option
1 i and ii
2 i and iv
3 iii and iv
4 All the above
Explanation:
Expiratory capacity is volume of air that can be exhaled forcefully after normal inspiration. During expiration, diaphragm relaxes and becomes convex.The external intercoastal muscles relax and pull ribs downwards and inwards which will decrease size of thoracic cavity.
BIOXI20: LOCOMOTION AND MOVEMENT
340085
Functional unit of striated muscle is
1 I Band
2 \(\mathrm{Z}\) line
3 Myofilament
4 Sarcomere
Explanation:
The portion of myofibril between two successive Z-lines is the functional unit of contraction, which is called as Sarcomere.
BIOXI20: LOCOMOTION AND MOVEMENT
340086
Actin and myosin filaments of muscles are also called ____ respectively
1 Thick and thin filaments
2 Thin and light filaments
3 Thin and thick filaments
4 White and dark filaments
Explanation:
A detailed study of the myofibril has established that the striated appearance is due to the distribution pattern of two important proteins - Actin and Myosin. The light bands contain actin and is called I-band or Isotropic band, whereas the dark band called ' A ' or Anisotropic band contains myosin. Actin filaments are thinner as compared to the myosin filaments, hence are commonly called thin and thick filaments respectively.
340083
Muscle fibre is a ____ as the sarcoplasm contains many nuclei.
1 Coencytic
2 Syncitium
3 Non-coenocytic
4 All of them
Explanation:
Muscle fibre is a syncytium as the sarcoplasm contains many nuclei.
BIOXI20: LOCOMOTION AND MOVEMENT
340084
For the purpose of increase of expiratory capacity which muscles are responsible from following? i. Radial muscles of diaphragm ii. External intercostals muscles iii. Internal intercoastal muscles iv. Abdominal muscles. Option
1 i and ii
2 i and iv
3 iii and iv
4 All the above
Explanation:
Expiratory capacity is volume of air that can be exhaled forcefully after normal inspiration. During expiration, diaphragm relaxes and becomes convex.The external intercoastal muscles relax and pull ribs downwards and inwards which will decrease size of thoracic cavity.
BIOXI20: LOCOMOTION AND MOVEMENT
340085
Functional unit of striated muscle is
1 I Band
2 \(\mathrm{Z}\) line
3 Myofilament
4 Sarcomere
Explanation:
The portion of myofibril between two successive Z-lines is the functional unit of contraction, which is called as Sarcomere.
BIOXI20: LOCOMOTION AND MOVEMENT
340086
Actin and myosin filaments of muscles are also called ____ respectively
1 Thick and thin filaments
2 Thin and light filaments
3 Thin and thick filaments
4 White and dark filaments
Explanation:
A detailed study of the myofibril has established that the striated appearance is due to the distribution pattern of two important proteins - Actin and Myosin. The light bands contain actin and is called I-band or Isotropic band, whereas the dark band called ' A ' or Anisotropic band contains myosin. Actin filaments are thinner as compared to the myosin filaments, hence are commonly called thin and thick filaments respectively.
340083
Muscle fibre is a ____ as the sarcoplasm contains many nuclei.
1 Coencytic
2 Syncitium
3 Non-coenocytic
4 All of them
Explanation:
Muscle fibre is a syncytium as the sarcoplasm contains many nuclei.
BIOXI20: LOCOMOTION AND MOVEMENT
340084
For the purpose of increase of expiratory capacity which muscles are responsible from following? i. Radial muscles of diaphragm ii. External intercostals muscles iii. Internal intercoastal muscles iv. Abdominal muscles. Option
1 i and ii
2 i and iv
3 iii and iv
4 All the above
Explanation:
Expiratory capacity is volume of air that can be exhaled forcefully after normal inspiration. During expiration, diaphragm relaxes and becomes convex.The external intercoastal muscles relax and pull ribs downwards and inwards which will decrease size of thoracic cavity.
BIOXI20: LOCOMOTION AND MOVEMENT
340085
Functional unit of striated muscle is
1 I Band
2 \(\mathrm{Z}\) line
3 Myofilament
4 Sarcomere
Explanation:
The portion of myofibril between two successive Z-lines is the functional unit of contraction, which is called as Sarcomere.
BIOXI20: LOCOMOTION AND MOVEMENT
340086
Actin and myosin filaments of muscles are also called ____ respectively
1 Thick and thin filaments
2 Thin and light filaments
3 Thin and thick filaments
4 White and dark filaments
Explanation:
A detailed study of the myofibril has established that the striated appearance is due to the distribution pattern of two important proteins - Actin and Myosin. The light bands contain actin and is called I-band or Isotropic band, whereas the dark band called ' A ' or Anisotropic band contains myosin. Actin filaments are thinner as compared to the myosin filaments, hence are commonly called thin and thick filaments respectively.
340083
Muscle fibre is a ____ as the sarcoplasm contains many nuclei.
1 Coencytic
2 Syncitium
3 Non-coenocytic
4 All of them
Explanation:
Muscle fibre is a syncytium as the sarcoplasm contains many nuclei.
BIOXI20: LOCOMOTION AND MOVEMENT
340084
For the purpose of increase of expiratory capacity which muscles are responsible from following? i. Radial muscles of diaphragm ii. External intercostals muscles iii. Internal intercoastal muscles iv. Abdominal muscles. Option
1 i and ii
2 i and iv
3 iii and iv
4 All the above
Explanation:
Expiratory capacity is volume of air that can be exhaled forcefully after normal inspiration. During expiration, diaphragm relaxes and becomes convex.The external intercoastal muscles relax and pull ribs downwards and inwards which will decrease size of thoracic cavity.
BIOXI20: LOCOMOTION AND MOVEMENT
340085
Functional unit of striated muscle is
1 I Band
2 \(\mathrm{Z}\) line
3 Myofilament
4 Sarcomere
Explanation:
The portion of myofibril between two successive Z-lines is the functional unit of contraction, which is called as Sarcomere.
BIOXI20: LOCOMOTION AND MOVEMENT
340086
Actin and myosin filaments of muscles are also called ____ respectively
1 Thick and thin filaments
2 Thin and light filaments
3 Thin and thick filaments
4 White and dark filaments
Explanation:
A detailed study of the myofibril has established that the striated appearance is due to the distribution pattern of two important proteins - Actin and Myosin. The light bands contain actin and is called I-band or Isotropic band, whereas the dark band called ' A ' or Anisotropic band contains myosin. Actin filaments are thinner as compared to the myosin filaments, hence are commonly called thin and thick filaments respectively.
