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3 years ago

Explain what bone is composed of and which cells break down and replace bone tissue.

Medicine

1 answer:

Zarrin [17]3 years ago

3 0

Answer:

Bones are composed of mainly collagen fibre and osteoclast are the cells used to breakdown bone tissue and osteoblast cells replace it.

Explanation:

Bone is made up of tough matrix which contains mainly collagen fibres which provide bone it's flexibility and strength. The deposition of calcium over collagen makes bones more strong. Blood vessels and fat deposits are also parts of a bone.

Osteoclasts are the cells which are specialized for degenerating old bone tissue and osteoblast are the cells which make new bone tissue and replace it from old bone tissue. This process is called bone remodeling.

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Why is knowing medical law important? IN YOUR OWN WORDS

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Answer:

It is important because with these laws in place it helps people be able to follow the same guidelines and helps people not to be doing so many things at once like for example one person is doing something for a sition and another is doing something different for the exact same situation. It would otherwise be chaos without it.

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2 years ago

Short-Answer Questions 1. Describe the muscles involved in turning the hand, as when twisting a doorknob back and forth. Name th

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Answer:

1. The actions involved in opening a door are pronation and supination

Pronation requires (anti-clock-wise): Pronator teres and pronator quadratus

Supination requires (clockwise): Supinator muscle

Arm flexors at:

- Shoulder level: Pectoralis major, Anterior deltoid, Coracobrachialisand Biceps brachii

- Forearm level/elbow: Brachialis, Brachioradialii and Biceps brachii

- Wrist level: Flexor carpi radialis, Flexor carpi ulnaris and Palmaris longus

2. Arm Extensors/Antagonists:

-Shoulder level: Triceps brachii

- Forearm level: Brachioradialis, Extensor carpi radialis longus, Extensor carpi radialis brevis and Extensor carpi ulnaris

- Wrist level: Extensor digitorum, Extensor digiti minimi, Extensor carpi ulnaris, Abductor pollicis longus, extensor pollicis brevis, Extensor pollicis longus and Extensor indicis.

3. Flexion: flexor carpi ulnaris, flexor carpi radialis

Extension: extensor carpi radialis longus and brevis, and extensor carpi ulnaris

Abduction: abductor pollicis longus, flexor carpi radialis, extensor carpi radialis longus and brevis.

Adduction: extensor carpi ulnaris and flexor carpi ulnaris

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3 years ago

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Answer:

Magnetic Simulation

Explanation:

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4 years ago

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KIM [24]

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3 years ago

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