Nervous System Overview Quiz

False (B)

Somatic nervous system and autonomic nervous system

<p>autonomic</p> Signup and view all the answers

<p>Afferent = Exiting information out of the CNS Efferent = Arriving information to the CNS Tract = A bundle of axons inside the brain and spinal cord Nerve = A bundle of axons outside the brain and spinal cord</p> Signup and view all the answers

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

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

<p>It serves as a conduit for signals between the brain and the body.</p> Signup and view all the answers

<p>4 years (C)</p> Signup and view all the answers

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

<p>Cauda equina</p> Signup and view all the answers

<p>filum terminale</p> Signup and view all the answers

<p>Dura mater = Outer layer Arachnoid mater = Middle layer Pia mater = Inner layer</p> Signup and view all the answers

<p>Cerebrospinal mater (D)</p> Signup and view all the answers

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

<p>45 cm</p> Signup and view all the answers

<p>31 (B)</p> Signup and view all the answers

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

<p>Sensory neurons</p> Signup and view all the answers

<p>gray matter</p> Signup and view all the answers

<p>Cervical = 8 Thoracic = 12 Lumbar = 5 Sacral = 5 Coccygeal = 1</p> Signup and view all the answers

<p>Ventral horn (A)</p> Signup and view all the answers

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

<p>Contains cerebrospinal fluid (CSF)</p> Signup and view all the answers

<p>Anterior spinal artery (A)</p> Signup and view all the answers

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

<p>Sensory and vasomotor innervation to the spinal meninges (A)</p> Signup and view all the answers

<p>To supply the spinal cord and spinal nerve roots.</p> Signup and view all the answers

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

<p>To transmit sensory information from sensory neurons to the brain.</p> Signup and view all the answers

<p>anterior and posterior spinal</p> Signup and view all the answers

<p>Anterior spinal artery = Supplies anterior 2/3 of the spinal cord Posterior spinal arteries = Supplies posterior 1/3 of the spinal cord Anterior and posterior radicular arteries = Supply spinal cord and nerve roots Arterial vasocorona = Supplies pia mater</p> Signup and view all the answers

<p>28</p> Signup and view all the answers

<p>Grey Matter = Contains neuronal cell bodies and is organized into nuclei. White Matter = Made up of axons that connect different parts of the nervous system. Anterior Rami = Innervates skin and intercostal muscles. Lamina/Rexed's Lamina = Classification based on 10 layers of neurons.</p> Signup and view all the answers

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

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

<p>They are grouped according to structure and function. (B)</p> Signup and view all the answers

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

<p>31 pairs</p> Signup and view all the answers

<p>anterior</p> Signup and view all the answers

Monitoring changes (stimuli) inside and outside the body.

Activating muscles or glands to cause effects.

Transmit nerve impulses from sensory receptors to CNS.

Transmit nerve impulses from CNS to muscles or glands.

Connect sensory and motor neurons within the CNS.

Cranial and peripheral nerves.

Bundle of axons outside the CNS.

Controls voluntary movement of skeletal muscles and sensory information from the external environment.

The spinal cord ends at the L1/L2 vertebral level in adults, occupying only the upper two-thirds of the vertebral column.

A collection of nerve roots at the inferior end of the vertebral canal, resembling a horse's tail.

A fibrous extension from the spinal cord's tip, attaching it to the coccyx, anchoring it in place.

Bulges in the spinal cord, cervical (upper limbs) and lumbosacral (lower limbs), reflecting neural demands.

Protective membranes surrounding the spinal cord: dura mater (outer), arachnoid mater (middle), pia mater (inner).

The space between the arachnoid mater and the pia mater, holding cerebrospinal fluid.

Lateral projections from the pia mater connecting the spinal cord to the dura mater, stabilizing the spinal cord.

Spinal cord growth finishes at 4 years, while the vertebral column's growth continues until 14–18 years of age.

The spinal cord is divided into 31 segments: 8 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 1 coccygeal.

Butterfly-shaped central core of the spinal cord, composed of neuronal cell bodies.

Areas surrounding gray matter; contains pathways connecting the brain and body.

Posterior/dorsal horn receives sensory information from the body.

Anterior/ventral horn sends signals to control skeletal muscles.

31 pairs of nerves branching out from the spinal cord, crucial for communication to and from the body.

Anterior median fissure and posterior median sulcus are prominent grooves on the spinal cord's surface.

Provides blood supply to the front two-thirds of the spinal cord.

Supply blood to the back one-third of the spinal cord.

A network of interconnected blood vessels supplying the pia mater, the delicate membrane covering the spinal cord.

A critical artery supplying the lower spinal cord, typically originating from the lower thoracic region (T10-T12).

The transmission of nerve impulses up and down the spinal cord, carrying sensory and motor information.

The process of receiving multiple sensory inputs, processing the information, and coordinating appropriate motor outputs.

The coordination of muscle contractions in the limbs, enabling walking and other coordinated movements.

Rapid, automatic responses to stimuli, essential for posture, coordination, and protection from harm.

Small nerves that re-enter the vertebral canal to provide sensory and vasomotor innervation to the spinal meninges.

Nerves that connect with sympathetic chain ganglia alongside the vertebral column.

Branches of spinal nerves that supply the anterior and lateral regions of the body.

Nerves that innervate the intercostal muscles, skin, and other structures in the chest and abdomen.

A classification system for neurons in the grey matter of the spinal cord based on their structure and function, divided into 10 zones.

Axons in white matter that carry sensory information from the body to the brain.

Axons in white matter that carry motor commands from the brain to the body.