Locomotion and Movement BIOLOGY - Locomotion and Movement

Which of the following is made up of a single bone in mammal?

Ankle joint is:

Bones formed by ossification of a tendon is called.

What happens in osteoporosis?

Which one of the following is showing the correct sequential order of vertebrae in the vertebral column of human beings?

Write true or false. If false change the statement so that it is true.
There are 11 pairs of ribs in man.

Write true or false. If false change the statement so that it is true.
Sternum is present on the ventral side of the body.

Fill in the blank spaces:
The human cranium is made of __________ bones.

Write true or false. If false change the statement so that it is true.
H-zone of striated muscle fibre represents both thick and thin filaments.

Fill in the blank spaces:
The number of phalanges in each limb of human is __________.

Draw the diagram of a sarcomere of skeletal muscle showing different regions.

Write the difference between:
Actin and Myosin

Suggest the reasons for Gout, Tetany, Osteoporosis and myasthenia gravis.

List the different types of ribs found in our body. How many pairs of ribs are present in human beings?

Rahul exercises regularly by visiting a gymnasium. Of late he is gaining weight. What could be the reason? Choose the correct answer and elaborate.

1. Rahul has gained weight due to accumulation of fats in body.
2. Rahul has gained weight due to increased muscle and less of fat.
3. Rahul has gained weight because his muscle shape has improved.
4. Rahul has gained weight because he is accumulating water in the body.

What are the different types of movements exhibited by the cells of human body?

How are muscles classified based on their location? Mention their important functions.

Differentiate between red muscle fibres and white muscle fibres.

What is the role of sarcoplasmic reticulum, myosin head and F-actin during contraction of striated muscles of humans?

Abhay, a police officer, discovered a human pelvis from the jungle. After checking the reports of missing people, he found that a couple had been missing from that area since a month. Abhay was confused as to whom the pelvis belonged to and therefore, took it to the forensic investigator. The forensic expert reported it to be a female pelvis. Afterwards, the DNA from the missing female's mother and pelvis was matched. Since, both the DNA matched. It confirmed that out of the couple, the lady had died.

1. How did the investigator opened it to be a female pelvis?
2. What other bones of human can be used for sex identification?
3. Give a possible reason for the change in female pelvis.
4. What values are shown by Abhay?

How do you distinguish between a skeletal muscle and a cardiac muscle?

Write the difference between:
Red and White muscles

Write the difference between:
Pectoral and Pelvic girdle

Describe the important steps in muscle contraction.

Match Column I with Column II :

	Column I		Column II
(a)	Smooth muscle	(i)	Myoglobin
(b)	Tropomyosin	(ii)	Thin filament
(c)	Red muscle	(iii)	Sutures
(d)	Skull	(iv)	Involuntary