Nervensystem Grundlagen Quiz

<p>To increase signal transmission speed (C)</p> Signup and view all the answers

<p>Motor nerves connect the brain to muscles. (A)</p> Signup and view all the answers

<p>Supply skin of the occipital region (A)</p> Signup and view all the answers

<p>Rami anteriores of the 1st and 2nd cervical spinal nerves (D)</p> Signup and view all the answers

<p>Skin of the upper gluteal region (A)</p> Signup and view all the answers

<p>Motor, sensory, and mixed branches (D)</p> Signup and view all the answers

<p>Muscles of the neck (B)</p> Signup and view all the answers

<p>Supply the skin of the lower part of the gluteal region (B)</p> Signup and view all the answers

<p>Plexus cervicalis (C)</p> Signup and view all the answers

<p>Primarily in thoracic spinal nerves (C)</p> Signup and view all the answers

<p>Carpal tunnel syndrome (B)</p> Signup and view all the answers

<p>Runs between m.flexor digitorum superficialis et profundus, then through the carpal tunnel (C)</p> Signup and view all the answers

<p>1st and 2nd mm.lumbricales and muscles of the thenar compartment (B)</p> Signup and view all the answers

<p>7 (B)</p> Signup and view all the answers

<p>Sulcus bicipitalis medialis (B)</p> Signup and view all the answers

<p>Art.cubiti and art.radiocarpalis (C)</p> Signup and view all the answers

<p>Deep layer (D)</p> Signup and view all the answers

<p>Skin over the thumb, index, middle, and radial side of the ring finger (B)</p> Signup and view all the answers

<p>Supply skin of the posterior thigh and fossa poplitea (B)</p> Signup and view all the answers

<p>Below the m.gluteus maximus (A)</p> Signup and view all the answers

<p>Hamstring muscles and adductor magnus (D)</p> Signup and view all the answers

<p>Divides into n.plantaris medialis and n.plantaris lateralis (B)</p> Signup and view all the answers

<p>rr.calcanei mediales (D)</p> Signup and view all the answers

<p>n.suralis (B)</p> Signup and view all the answers

<p>n.cutaneus femoris posterior (D)</p> Signup and view all the answers

<p>2 cm (D)</p> Signup and view all the answers

<p>Supplies skin of the medial side of the crus and foot (B)</p> Signup and view all the answers

<p>m.pectineus, m.adductor brevis, m.adductor longus, m.gracilis (A)</p> Signup and view all the answers

<p>Enters canalis inguinalis to supply funiculus spermaticus (D)</p> Signup and view all the answers

<p>m.sartorius (B)</p> Signup and view all the answers

<p>n.gluteus inferior (A)</p> Signup and view all the answers

<p>On m.piriformis, covered by fascia (D)</p> Signup and view all the answers

<p>n.pudendus (D)</p> Signup and view all the answers

<p>Skin over trigonum femorale (A)</p> Signup and view all the answers

<p>Skin of the heel and lateral margin of the foot (A)</p> Signup and view all the answers

<p>N.plantaris medialis (A)</p> Signup and view all the answers

<p>N.fibularis superficialis and n.fibularis profundus (C)</p> Signup and view all the answers

<p>Lateral surface of the crus and dorsal side of the foot (D)</p> Signup and view all the answers

<p>R.profundus (B)</p> Signup and view all the answers

<p>Skin of the 1st intermetatarsal space (A)</p> Signup and view all the answers

<p>Supplies motor fibers to certain eye muscles (D)</p> Signup and view all the answers

<p>Nerve trochlearis (A)</p> Signup and view all the answers

<p>Adductor hallucis (C)</p> Signup and view all the answers

<p>N.cutaneus dorsalis lateralis (B)</p> Signup and view all the answers

<p>Via the radix oculomotoria to the ciliary ganglion (C)</p> Signup and view all the answers

<p>It is a mixed nerve with sensory and motor fibres (C)</p> Signup and view all the answers

<p>Sensory fibres (B)</p> Signup and view all the answers

<p>Fissura orbitalis superior (A)</p> Signup and view all the answers

<p>In the tegmentum mesencephali at the level of the colliculi inferiores (C)</p> Signup and view all the answers

<p>Four sensory nuclei and one motor nucleus (D)</p> Signup and view all the answers

A test covering the structure and function of nerves in the human body.

A type of test question where multiple possible answers are provided.

A process of checking understanding of information.

The role of nerves in transmitting signals within the body.

The routes taken by signals passing through the nervous system.

The plexus cervicalis is formed by the anterior branches of the upper four cervical spinal nerves (C1-C4).

The plexus cervicalis is located on the deep muscles of the neck, specifically in the lateral triangle of the neck (trigonum colli laterale). It is covered by the sternocleidomastoid muscle.

The plexus cervicalis has three main branch groups: motor, sensory, and mixed.

The motor branches of the plexus cervicalis (rr. musculares) supply the muscles of the lateral, deep, and craniothoracic groups of the neck.

The ansa cervicalis formed by two roots (superior and inferior). The superior root arises from C1 and C2, joins with the inferior root, which comes from C2 and C3. It supplies the straight muscles of the neck (except geniohyoideus), and is located on a bundle of nerves and blood vessels in the neck.

The n. occipitalis minor, a sensory branch of the plexus cervicalis, supplies the skin of the lateral part of the neck and the posterior part of the head (occipital region).

Metamerity refers to the segmental arrangement of spinal nerves and their corresponding dermatomes (skin areas) and myotomes (muscle areas). It's most evident with the thoracic spinal nerves (intercostal nerves).

The main plexuses formed by spinal nerves are: plexus cervicalis, plexus brachialis, plexus lumbalis, and plexus sacralis. They are formed by the anterior branches of various spinal nerves.

The median nerve is formed by the union of two roots: the lateral root from the lateral cord and the medial root from the medial cord of the brachial plexus.

The median nerve travels down the medial bicipital sulcus with other structures, crosses the cubital fossa, penetrates the pronator teres muscle, and passes between the flexor digitorum superficialis and profundus muscles.

Compression of the median nerve within the carpal tunnel, causing pain, numbness, and weakness in the hand.

The median nerve lies below the palmar aponeurosis and supplies branches to the skin of the thumb, index finger, middle finger, and radial side of the ring finger.

The median nerve branches supply the skin of the distal and medial phalanges of the thumb, index, middle, and radial side of the ring finger.

The median nerve innervates the first two lumbricals, abductor pollicis brevis, opponens pollicis, and the superficial head of flexor pollicis brevis.

The median nerve supplies sensory branches to the wrist joint and the joints of the hand.

The anterior interosseous nerve is a branch of the median nerve that runs down the anterior surface of the interosseous membrane. It supplies deep muscles of the forearm.

A nerve that exits the pelvic cavity through the greater sciatic foramen, descends under the gluteus maximus muscle, and supplies the skin of the posterior thigh and popliteal fossa.

The largest nerve in the body, it originates from the sacral plexus, exits the pelvis through the greater sciatic foramen, travels through the posterior thigh, and branches into the tibial and common fibular nerves.

One of the two terminal branches of the sciatic nerve, it descends through the popliteal fossa, supplies muscles in the posterior leg, and branches into the medial and lateral plantar nerves at the foot.

The other terminal branch of the sciatic nerve, it travels along the lateral side of the leg and branches into the superficial and deep fibular nerves.

Branches of the posterior femoral cutaneous nerve that supply the lower part of the gluteal region.

Branches of the posterior femoral cutaneous nerve that supply the skin of the perineum.

Branches of the tibial nerve that supply the muscles of the posterior leg.

Branches of the tibial nerve responsible for supplying the skin of the heel.

A short, flat muscle located at the back of the hip joint. It helps with external rotation and stabilization of the thigh.

The longest muscle in the human body, located on the anterior thigh. It flexes, abducts, and externally rotates the thigh, and it also flexes the leg at the knee.

A thick, flat muscle located near the groin. It helps to adduct and flex the thigh.

The longest branch of the femoral nerve. It travels all the way down the medial side of the leg, providing sensation to the skin of the inner thigh, knee, shin, and foot.

This nerve branches into two sections, one supplying structures in the groin and the other supplying the skin of the thigh.

This nerve passes through the obturator canal, innervating several muscles of the inner thigh and providing sensation to certain areas of the thigh and knee.

This nerve supplies muscles involved in abduction and lateral rotation of the thigh, helping to raise the leg sideways.

This nerve supplies the muscles and skin of the perineum, the area between the legs, and plays a role in sexual function.

This nerve branches from the tibial and common peroneal nerves, passing behind the lateral malleolus to supply the lateral foot and heel.

A branch of the common peroneal nerve that provides sensory innervation to the lateral side of the calf.

This nerve, a branch of the tibial nerve, provides sensory and motor innervation to the medial side of the foot.

A branch of the tibial nerve, it provides motor and sensory innervation to the lateral parts of the foot.

This nerve branches from the sciatic nerve, running down the lateral side of the leg to supply the muscles and skin of the lower leg and foot.

It provides sensory innervation to the dorsal surface of the foot, excluding the first intermetatarsal space and the lateral side of the fifth toe.

It travels alongside the anterior tibial artery and veins, passing under the extensor retinaculum to supply the 1st intermetatarsal space.

It supplies motor innervation to the muscles involved in dorsiflexion and inversion of the foot.

The oculomotor nerve (III) emerges from the sulcus oculomotorius mesencephali.

The oculomotor nerve (III) branches into a superior ramus, supplying the superior rectus and levator palpebrae superioris muscles, and an inferior ramus supplying the inferior rectus, medial rectus, and inferior oblique muscles.

Parasympathetic fibers from the oculomotor nerve (III) travel to the ciliary ganglion, where they synapse with postganglionic fibers that control the sphincter pupillae (constricting the pupil) and ciliary muscles (accommodating for near vision).

The fourth cranial nerve is the trochlear nerve (IV).

The trochlear nerve (IV) nucleus is located in the tegmentum mesencephali, at the level of the inferior colliculi.

The trigeminal nerve (V) is a mixed nerve—it contains both sensory and motor fibers.

The trigeminal nerve (V) has four nuclei: the principal sensory nucleus, the mesencephalic sensory nucleus, the spinal sensory nucleus, and the motor nucleus.

The trigeminal nerve (V) branches into three: the ophthalmic nerve (V1), the maxillary nerve (V2), and the mandibular nerve (V3).