what is the difference between upper and lower extremity?
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In the humans, the gross difference in the upper and lower limbs is that the flexor and extensor surfaces and their functional groups of muscles are in the opposite directions i.e. flexor surfaces or muscles in the upper limbs are placed anteriorly whilst in the lower limbs, it is the extensor surfaces or group of ...
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A limb length difference may simply be a mild variation between the two sides of the body. This is not unusual. For example, 32 percent of military recruits in one study had a 1/5- to 3/5-inch difference between the lengths of their legs. This is a normal variation.
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The forelimb consists of: Humerus, radius and ulna, carpals, metacarpals, digits or phalanges (see diagram 6.6). The top of the humerus moves against (articulates with) the scapula at the shoulder joint. By changing the number, size and shape of the various bones, fore limbs have evolved to fit different ways of life.
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The second difference is that each grip involves a different type of muscle activity. ... Pinch grip is a form of power grip and involves the extrinsic muscles, static muscle activity and a lot of muscle power. The precision grip involves the intrinsic muscles, dynamic muscle activity and little muscle power.
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1. What are the structural and functional differences between a tarsal and a metatarsal? Structurally, a tarsal is a short bone, meaning its length, width, and thickness are about equal, while a metatarsal is a long bone whose length is greater than its width.
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In the human body, the arms and the legs are commonly called the upper limbs and lower limbs respectively, to include part of the shoulder and hip girdles.
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The difference between Hand and Paw. When used as nouns, hand means the part of the fore limb below the forearm or wrist in a human, and the corresponding part in many other animals, whereas paw means the soft foot of a mammal or other animal, generally a quadruped, that has claws or nails.
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The knee is proximal to the foot. Moving distally from the hip brings you to the thigh. The foot is distal to the knee.
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The main one is what their injury is or the reason they need a mobility aid. (Lower limb injuries: crutches, wheelchair, scooter. Upper limb injuries you generally need a cast and sling). The second one is age.
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Proximal and Distal describe one point relative to another. Proximal refers to a point closer to the reference point while distal refers to a point farther away. When describing appendages, the proximal end of the appendage connects the appendage to the body, while the distal end is away from the body.
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So a finger is distal to the wrist, which is distal to the elbow, which is distal to the shoulder. Or, similarly, the femur is proximal to the knee, which is proximal to the ankle, which is proximal to the toes.
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Elbow Anatomy. The elbow is where the two bones of the forearm – the radius on the thumb side of the arm and the ulna on the pinky finger side – meet the bone of the upper arm -- the humerus. The lower end of the humerus flares out into two rounded protrusions called epicondyles, where muscles attach.
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The upper extremity or arm is a functional unit of the upper body. It consists of three sections, the upper arm, forearm, and hand.
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Anatomical Parts The humerus is the longest and largest bone of the upper extremity that runs from the shoulder to the elbow. It connects the scapula and the lower arm (consisting of the radius and ulna), and consists of three sections.
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Lateral describes the side or direction toward the side of the body. ... Superficial describes a position closer to the surface of the body. The skin is superficial to the bones. Deep describes a position farther from the surface of the body.
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It is well-established that upper limb exercise leads to higher blood pressure (BP) and heart rate (HR) than lower limb exercise due to a higher work component and elevated peripheral resistance caused by reduced active muscle mass14-16.
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The human leg, in the general word sense, is the entire lower limb of the human body, including the foot, thigh and even the hip or gluteal region. However, the definition in human anatomy refers only to the section of the lower limb extending from the knee to the ankle, also known as the crus.