Science, asked by umakantVishwakarma, 4 months ago

Differentiate between the following.
a) An endoskeleton and an exoskeleton .
b) A ligament and a tendon.
c) Ball-and-socket joint and hinge joint.​

Answers

Answered by UmaDey
0

a) Difference Between Endoskeleton And Exoskeleton

Meaning

Endoskeleton : Refers to the internal skeleton

Exoskeleton: Refers to the external skeleton

Found

Endoskeleton: Vertebrates

Exoskeleton: Arthropods

Structure

Endoskeleton: Living

Exoskeleton: Nonliving

Develops from

Endoskeleton: Endoderm

Exoskeleton: Ectoderm

Made of

Endoskeleton: Phosphorous and calcium

Exoskeleton: Calcified shells, scales, cuticle

Presence

Endoskeleton: Inside the body

Exoskeleton: Outside

Grows with the body

Endoskeleton: Yes

Exoskeleton: No

Flexibility

Endoskeleton: More

Exoskeleton: Less

b) Difference Between Tendon and Ligament

Tendon: Connects skeletal muscles to bones

Ligament: Connects bones to bones

Tendon: Tough and elastic

Ligament: Elastic

Tendon: Connects the end of the muscles to bones

Ligament: Connects the end of the bones at joints

Tendon: Each muscle contains only one tendon.

Ligament: Each joint contains many ligaments

Tendon: Proteoglycan content is low

Ligament: Proteoglycan content is comparatively more

Tendon: White in colour

Ligament: Yellow in colour

Tendon: Blood supply is poor

Ligament: Blood supply is just as poor

Tendon: Fibroblasts lie in a continuous row

Ligament: Fibroblasts are scattered

Tendon: The fibres are compact and present in parallel bundles

Ligament: They are not arranged in parallel bundles but are compactly packed

Tendon: No such classification

Ligament: They are classified into three types, namely: Articular ligaments, Remnant ligaments and Peritoneal ligaments

c) Difference between Ball-and-socket joint and hinge joint.

Ball And Socket Joint:

1. It permits free movement in all directions.

2. It is the most movable of the synovial joint, e.g. shoulder joint and hip joint.

Hinge Joint:-

1. It permits movement in one plane only.

2. It is comparatively less movable, e.g. elbow.

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