Definitions and Introduction. Flashcards

1
Q

Define a synsarcosis?

A

When a joint is held together by muscles rather than by bones.

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2
Q

What is the most proximal bone of the canine forelimb?

A

The scapula.

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3
Q

The area of the body where the 2 forelimbs come together is known as what?

A

The pectoral girdle.

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4
Q

How is the forelimb attached to the main body of the animal?

A

Via 8 extrinsic muscles.

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5
Q

The use of muscles to join 2 different body parts together is known as what?

A

As synsarcosis.

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6
Q

Other than attaching the forelimb to the body, what is the other function of the 8 extrinsic muscles?

A

They help to bear weight.

They help absorb shocks.

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7
Q

How much of an animals weight rests on the forelimbs?

A

Around 60%.

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8
Q

How much of an animals weight rests on the hindlimbs?

A

Around 40%.

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9
Q

What is the main function of the hindlimbs?

A

To propel the animal forward.

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10
Q

How does the positioning of the scapula differ in the dog and the cat?

A

In the cat, the scapula is positioned much more dorsally than in the dog.

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11
Q

What are the 8 extrinsic muscles that attach the forelimb to the trunk?

A

The latissimus dorsi.

The trapezius.

The rhomboideus.

Omo-transversarius.

The brachiocephalicus.

The pectoral muscles.

The serratus ventralis.

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12
Q

What are the 6 main joints of the canine forelimb?

A

The shoulder joint.

The elbow joint.

The carpal joint.

The metacarpophalangeal joint.

The proximal interphalangeal joint.

The distal interphalangeal joint.

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13
Q

What is the shoulder joint also known as?

A

As the scapulohumeral joint.

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14
Q

What is the elbow joint also known as?

A

As the cubital joint.

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15
Q

The joints of the canine forelimb are mainly what kind of joint?

A

Compound synovial joints.

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16
Q

What joints are identical in the forelimb and the hindlimb?

A

The 3 interphalangeal joints.

17
Q

What is the major difference between the interphalangeal joints in the forelimb and the hindlimb?

A

In the forelimb is referred to as the carpus.

In the hindlimb it is referred to as the tarsus.

18
Q

What allows the animal to stand upright and remain balanced?

A

The muscles in the forelimb oppose the muscles in the hindlimb allowing the animal to stand and remain balanced.