Human Anatomy Weekly Quizzes Exam 2

The glial cell that helps to form cerebrospinal fluid is the

ependymal cell

The ulnar notch is located in the __________ (bone) and articulates with the ___________ .

radius; head of the ulna

The pubic symphysis unites which two bones?

right and left pubis

How do signals pass through a typical single neuron?

signals pass from the dendrites through the cell body and down the axon to the axon terminals

The ligament that runs from the anterior aspect of the femur towards the posterior aspect of the tibia is named the:

posterior cruciate ligament (PCL)

The ________________________ innervates the trapezius and the sternocleidomastoid.

Accessory nerve - CN XI

The superior trunk originates from the branches of which cervical nerve?

C5 & C6

Which of the following describes a gomphosis joint correctly? - one bone rotates around another bone - No statement describes a gomphosis joint. - the rounded, ball-like end of one bone fits into a concave depression of another bone - the flat articular surfaces of two bones glide past one another the convex articular surface of one bone fits into the concave articular surface of another bone

No statement. Gomphosis joint = type of fibrous joint (think 'gum'), peg-and-socket joint - one bone rotates around another bone = pivot joint - the rounded, ball-like end of one bone fits into a concave depression of another bone = ball-and-socket joint - the flat articular surfaces of two bones glide past one another the convex articular surface of one bone fits into the concave articular surface of another bone = plane/gliding joint

In the brain, the separation of the periosteal layer and the meningeal layer form which structure(s)?

all dural venous sinuses

When the forearm is pronated, the shaft of the radius is ____________ to the shaft of the ulna.

anterior

The ligament that runs from the posterior aspect of the femur towards the anterior aspect of the tibia is named the:

anterior cruciate ligament (ACL)

In the spinal cord, the somas of the lower motor neurons are found in the:

anterior/ventral horns

The glial cells that guide migrating neurons in the developing fetal brain are

astrocytes

Nerves that directly control the motility of the stomach or rate of the heartbeat would belong to the

autonomic motor division

Which two bone features compose the condyle of the humerus?

capitulum and trochlea

Below L1-L2, the vertebral canal is occupied by a bundle of spinal nerve roots called the:

cauda equina

The nerve branching off of C5 can belong to both the _________ and ________ plexuses.

cervical; brachial

Which cranial nerves do not innervate the eye?

facial - CN VII

Which bone has the linea aspera as one of the bone features?

femur

Which of the following bones is NOT part of the knee joint? - tibia - femur - patella - fibula

fibula

Lambert-Eaton myasthenic syndrome is an autoimmune disease that attacks voltage-gated calcium channels in the nerve terminal. Calcium channels are unable to open and as a result neurotransmitter is not released. What is a likely symptom of this condition?

inability to contract muscles

An amphiarthrosis is defined as a:

joint that allows some motion

The lateral cord gives rise to which nerves?

musculocutaneous and median

Which of the following is NOT a function of synovial fluid? - nourishment for chondrocytes - lubrication - nourishment for osteocytes - shock absorption

nourishment for osteocytes

The synovial joint between the atlas and axis is a:

pivot joint

Which of the following branched patterns of nerves is part of the brachialplexus?

superior trunk, lateral cord, & musculocutaneous nerve

In healthy humans, the cerebrospinal fluid (CSF) flows in a specific direction due to

the ependymal cells cilia

Which of the following bone(s) articulates with the femur? - tibia - fibula - tibula and fibia - fibula and tibia

tibia

The _________________________ innervates the superior oblique muscle.

trochlear nerve - CN IV

The longest nerve that innervates the digestive system is the

vagus nerve

When is it that an impulse does not have to reach the brain?

when it is a reflex

The dorsal root ganglion has which types of neurons relaying what type of information ?

Unipolar Neurons, sensory information

The bones that form the pectoral girdle are the:

clavicle and scapula

The ____________ is the outermost meninx, and forms supportive and protective partitions between some portions of the brain.

dura mater

Which bone feature of the scapula is posterior?

spine

The abducens nerve _________.

supplies innervation to the lateral rectus muscle of the eye

Which tarsal bone articulates with the tibia?

talus

What is the largest mass of neuronal cell bodies found within the central nervous system?

thalamus

What structure connects the hypothalamus to the pituitary gland?

Infundibulum

Although rare, brain stem damage may occur due to inflammation produced by other brain injuries. Which of the following functions will be affected due to damage in the Pons?

Communication between cerebellum and cerebrum.

Damage on which of the following cranial nerves would result in vertigo and unilateral hearing loss?

Vestibulocochlear - CN VIII