Definition of dorsum
1 : the upper surface of an appendage or part. 2 : back especially : the entire dorsal surface of an animal.
Where is the dorsum?
The dorsum of foot is the area facing upwards while standing.
What is dorsum of hand mean?
Description. The dorsum of hand (opisthenar area, dorsal area) is the corresponding area on the posterior part of the hand.
Which muscle is located in the dorsum?
Dorsal muscles of the foot. The muscles of the dorsum of the foot are a group of two muscles, which together represent the dorsal foot musculature. They are named extensor digitorum brevis and extensor hallucis brevis.
What is the dorsum of the nose?
The nasal “dorsum” is the bone-and-cartilage structure that connects your nose to your face. Most of us refer to it as the “bridge” of our nose. The dorsum can develop humps for several reasons.
Does dorsum mean back?
The back. The upper, outer surface of an organ, appendage, or part. The dorsum of the foot. The back.
What do muscles on the dorsum of the foot do?
The dorsal group consists of two muscles, extensor digitorum brevis and extensor hallucis brevis. Both muscles act to extend the toes.
What Innervates the dorsum of the foot?
Dorsum skin is supplied by the terminal branches of tibial nerve and common peroneal nerve. Branches of the superficial peroneal nerve (SPN) supplies major portion of the dorsum of the foot and toes except the areas supplied by the deep peroneal nerve (DPN) and sural nerve (SN).
Which muscle has its origin on the dorsum of the foot?
Dorsal interossei muscles | |
---|---|
Origin | metatarsals |
Insertion | proximal phalanges |
Nerve | lateral plantar nerve |
Actions | abduct toes |
Where is the dorsum of wrist?
The dorsal radial zone is the area of the wrist near the thumb over the palm side. Most common: Extensor carpi radialis tenosynovitis – inflammation of the sheath surrounding the tendon.
What is Hypothenar eminence?
The hypothenar eminence is the mound located at the base of the fifth digit (little finger). The eminences at either side of the hand are made up of muscles. The muscles located in the thenar eminence function primarily to control the thumb.
What nerve innervates the dorsum of the hand?
Radial nerve | |
---|---|
Innervates | posterior compartment of the arm, posterior compartment of the forearm |
Identifiers | |
Latin | nervus radialis |
MeSH | D011826 |
What is the top of the foot called?
- Talus – the bone on top of the foot that forms a joint with the two bones of the lower leg, the tibia and fibula.
- Calcaneus – the largest bone of the foot, which lies beneath the talus to form the heel bone.
- Tarsals – five irregularly shaped bones of the midfoot that form the foot’s arch.
What is extensor digitorum brevis?
Extensor Digitorum Brevis is one of the intrinsic muscles on the dorsum of the foot. It arises from the upper and lateral surface of the calcaneous, the floor of tarsal sinus, the talocalcaneal ligament, and the stem of the inferior extensor retinaculum.
What is the side of the foot called?
The cuboid is on the lateral side of the foot (outer foot) and sits in front of the calcaneus. The navicular is on the medial (inner) side of the foot, between the talus and the cuneiform bones in front.
Is the dorsum bone?
Dorsum sellae | |
---|---|
TA2 | 594 |
FMA | 54718 |
Anatomical terms of bone |
What is ala nasi?
The alae nasi are the lateral portions of the nose or the wings of the nostrils, which partly encircle the nostrils (nares). They are usually about the width of the columella, but vary greatly depending on the shape of the nostril.
What is the skin between your nostrils called?
Answer: The skin that separates your nostrils at the base of your nose is called your columella.
Is dorsum plural or singular?
Case | Singular | Plural |
---|---|---|
Vocative | dorsum | dorsa |
What does femoral refer to?
: of or relating to the femur or thigh.
Is plantar fasciitis inflammation?
Plantar fasciitis is the inflammation of the plantar fascia, tissue in the foot used during walking and foot movement. Plantar fasciitis can be caused by a number of factors, including type of shoes, foot structure, overuse and types of walking surfaces. The main symptom of plantar fasciitis is heel pain.
How do you memorize the sole layers?
- Mnemonic: Abs Flex Abs.
- Mnemonic: Quadratus Lumborum OR you can also remember it with Flexor digitorum longus (comparable to FDP of hand – deeper and attaches to distal phalanx and the 2 muscles that attaches to FDL)
- Mnemonic: Flex Add Flex (Opposite of first layer)
- Mnemonic: 4DAB and 3 PAD.
How did I get plantar fasciitis?
Plantar fasciitis is most commonly caused by repetitive strain injury to the ligament of the sole of the foot. Such strain injury can be from excessive running or walking, inadequate foot gear, and jumping injury from landing.
What muscles do Dorsiflex and Evert?
Fibularis (peroneus) tertius: This muscle originates on the anterior surface of the shaft of the fibula and inserts on the base of the fifth metatarsal bone. It dorsiflexes the ankle and everts the foot.
What are the four plantar layers?
- – Plantar muscles of the foot are divided into 4 layers; – 1st Layer: …
- – 2nd Layer: – muscles of 2nd subfascial layer are (from medial to lateral) tendon of FHL, tendon of FDL, quadratus, & lumbricals. …
- – 3rd Layer: – in 3rd subfascial layer are FDM, adductor hallucis, & FHB;
What nerve Dorsiflexes the foot?
Deep fibular nerve: Innervates the muscles of the anterior compartment of the leg; tibialis anterior, extensor digitorum longus and extensor hallucis longus. These muscles act to dorsiflex the foot, and extend the digits.
What muscle crosses the ankle?
Origin: The peroneus longus muscle originates on the head of the fibula and the upper half of the fibular shaft – this muscle crosses the ankle joint and courses deep into the foot and passes into a groove of the cuboid bone.
What’s the bottom of your foot called?
What is the bottom of your foot called? The bottom of the foot is known as the sole. The padded area on the bottom of the foot is known as the plantar aspect.
What muscles abduct toes?
Abductor hallucis muscle | |
---|---|
Nerve | Medial plantar nerve |
Actions | Abducts hallux |
Antagonist | Adductor hallucis muscle |
Identifiers |
Can a chiropractor adjust a wrist?
A wrist adjustment is a pleasant experience for patients and doesn’t cause any pain. As you can see in the video, a chiropractor wrist adjustment is a pretty relaxing process for the patient. After the wrist adjustment, Dr.
How do you treat a wrist impingement?
- Rest. Avoid activities that put weight on or extend the wrist until the inflammation and pain subside. …
- Wear a Brace. Keeping the hand and wrist immobile in a brace allows the inflamed tissue to heal. …
- Ice. …
- Pain Medications.
How do you treat ECU tendonitis?
Mild cases of ECU Tendinitis can be treated with rest, splinting and non-steroidal anti-inflammatories, whereas severe instances can necessitate cortisone injection or surgery to repair the tendon and its sheath which anchors it to the ulna head and wrist (aka subsheath).
What is palmaris brevis?
The palmaris brevis (PB) is a small muscle of variant morphology originating from the palmar aponeurosis to insert in the skin and fascia of the medial palm (Przystasz, 1977). The PB is uniquely innervated by the only motor component of the superficial branch of the ulnar nerve.
What is a Palmaris longus?
The Palmaris longus (PL) muscle is a long, slender muscle which is usually present in the superficial volar compartment of the forearm, interposed between the Flexor Carpi Ulnaris and the Flexor Carpi Radialis muscles. … The absence of the palmaris longus does not have an effect on grip strength.
Which muscle attaches to the tendons of the flexor digitorum profundus and extensor digitorum?
The lumbricals, intrinsic muscles of the hand, attach to the tendon of flexor digitorum profundus. Thus, the flexor muscle is used to aid the lumbrical muscles in their role as extensors of the interphalangeal joints.
In what appendage is the radial nerve located?
The appendage that the radial nerve is located in is the arm.
What is Saturday night palsy?
THE TERM Saturday night palsy has become synonymous with radial nerve compression in the arm resulting from direct pressure against a firm object. It typically follows deep sleep on the arm, often after alcohol intoxication.
What is the origin of the Supinator?
Origin. The supinator muscle has a broad origin from the ulna and humerus. The two layers of fibres originate in common from the supinator crest of the ulna, the lateral epicondyle of the humerus, the radial collateral ligament and the annular radial ligament.
Is the top of the foot dorsal or ventral?
Similarly, for the feet, the dorsal side is the top of the foot, or the area facing upwards when standing upright.
What are the 5 toes called?
The forefoot contains the five toes (phalanges) and the five longer bones (metatarsals). The midfoot is a pyramid-like collection of bones that form the arches of the feet. These include the three cuneiform bones, the cuboid bone, and the navicular bone. The hindfoot forms the heel and ankle.
What are the finger bones called?
Phalanges. The 14 bones that are found in the fingers of each hand and also in the toes of each foot. Each finger has 3 phalanges (the distal, middle, and proximal); the thumb only has 2.