What is Hilton’s Anatomy law?

Hilton’s law states that a joint tends to be innervated by a branch of a motor nerve which also supplies a muscle extending and acting across the joint. Another branch of the nerve often supplies the overlying skin. What is Hilton’s law give example?
For example, the musculocutaneous nerve supplies the elbow joint of humans with pain and proprioception fibres. It also supplies coracobrachialis, biceps brachii, brachialis, and the forearm skin close to the insertion of each of those muscles.

Do joints have a nerve supply?

Every joint in the body has different innervation; however, the innervation of synovial joints is most extensively understood. … The sensory nerves of the articular capsule and ligaments (articular nerves) provide proprioceptive feedback from Ruffini endings and Pacinian corpuscles. Which law states a nerve trunk that supplies a joint also supplies the muscles of the joint and the skin over the insertion of such muscles?
Hilton’s law n. The principle that the nerve supplying a joint also supplies both the muscles that move the joint and the skin covering the articular insertion of those muscles.

Which joint is in shoulder?

The glenohumeral joint is the one most people think of as the shoulder joint. It is formed where a ball (head) at the top of the humerus fits into a shallow cuplike socket (glenoid) in the scapula, allowing a wide range of movement. What is obturator nerve?

The obturator nerve arises from the lumbar plexus and provides sensory and motor innervation to the thigh. This nerve provides motor innervation to the medial compartment of the thigh and as a result, is essential to the adduction of the thigh.

Frequently Asked Questions(FAQ)

What is Musculocutaneous nerve?

The musculocutaneous nerve innervates the three muscles of the anterior compartment of the arm: the coracobrachialis, biceps brachii, and brachialis. It is also responsible for cutaneous innervation of the lateral forearm.

What are shunt and spurt muscles?

STERN, Jr. Fig 1. Muscle A, with its functional insertion further removed from the joint axis than its functional origin, is a ‘shunt’ muscle. Muscle B, with its functional origin further removed from the joint axis than its functional insertion, is a ‘spurt’ muscle.

What limits movement at the hip joint?

The iliofemoral ligament is the strongest ligament in the body and attaches the anterior inferior iliac spine (AIIS) to the intertrochanteric crest of the femur. The pubofemoral ligament prevents excess abduction and extension, ischiofemoral prevents excess extension, and the iliofemoral prevents hyperextension.

What is axillary nerve?

The axillary nerve or the circumflex nerve is a nerve of the human body, that originates from the brachial plexus (upper trunk, posterior division, posterior cord) at the level of the axilla (armpit) and carries nerve fibers from C5 and C6.

What are the 6 types of synovial joint?

What is synovial membrane?

Listen to pronunciation. (sih-NOH-vee-ul MEM-brayn) A layer of connective tissue that lines the cavities of joints, tendon sheaths, and bursae (fluid-filled sacs between tendons and bones). The synovial membrane makes synovial fluid, which has a lubricating function.

Which is a hinge joint?

A hinge joint is a type of synovial joint that exists in the body and serves to allow motion primarily in one plane. … [3][4] The hinge joints of the body include the elbow, knee, interphalangeal (IP) joints of the hand and foot and the tibiotalar joint of the ankle.

What is a hybrid muscle?

Composite or hybrid muscles are those muscles which have more than one set of fibers but perform the same function and are usually supplied by different nerves for different set of fibers.

Which nerve supply both hip joint and knee joint?

Articular branches of the obturator nerve supply the hip and knee joints and hence pain produced in one joint can manifest as referred pain in the other. Similarly pelvic inflammation involving the obturator nerve can produce referred pain along the medial aspect of the thigh.

How did the median nerve get its name?

The median nerve is the main nerve of the front of the forearm. It supplies the muscles of the front of the forearm and muscles of the thenar eminence, thus controlling the coarse movements of the hand. Therefore, it is also called labourer’s nerve.

What is top of shoulder called?

The shoulder joint is where the humerus (upper arm bone) meets the scapula (shoulder blade).

• Muscles and ligaments help make up the joint. …
• At the top of the shoulder blade are two bony knobs called the acromion and coracoid process.
• The subacromial space is between the top of the humerus and the acromion.

What is back of shoulder called?

scapula The scapula is a large, flat triangular bone with three processes called the acromion, spine and coracoid process . It forms the back portion of the shoulder girdle.

What are the 7 movements of the shoulder?

Overview. The human shoulder is the most mobile joint in the body. This mobility provides the upper extremity with tremendous range of motion such as adduction, abduction, flexion, extension, internal rotation, external rotation, and 360° circumduction in the sagittal plane.

What is lumbosacral trunk?

The lumbosacral trunk is a collection of neural fibers that interconnect the lumbar and sacral plexus. … These nerve fibers run on the medial side of the psoas major muscle and run inferiorly over the pelvic brim to join the first sacral nerve. The lumbosacral trunk gives rise to the following nerves: Sciatic nerve.

What is saphenous nerve?

The saphenous nerve runs laterally alongside the saphenous vein, giving off a medial cutaneous nerve that supplies the skin of the anterior thigh and anteromedial leg. The saphenous nerve travels to the dorsum of the foot, medial malleolus, and the area of the head of the first metatarsal.

What is the femoral triangle?

The femoral triangle is a hollow region located in the supero-medial part of the anterior thigh. It appears most prominently with hip flexion, abduction and internal rotation. It is an easily accessible area through which multiple neurovascular structures pass through.

How many muscles are in your thumb?

The muscles of the thumb are nine skeletal muscles located in the hand and forearm.

How many nerves are in your arm?

Three main nerves run past the elbow and wrist to the hand. Median nerve. This nerve passes down the inside of the arm and crosses the front of the elbow.

What is pronator teres?

The pronator teres muscle is a long, thin muscle that is located on the underside of the forearm. This muscle has two different muscle heads (otherwise known as places of origins), the humeral head and the ulnar head.

Is spurt or shunt good for movement?

The spurt muscle pulls more directly across the bone in most positions other than full extension whereas the shunt muscle pulls more directly along the moving bone, (b) biomechanical analysis (see text).