Practice Exams 11, 12, 14 - Anatomy Midterm

Match the subdivision of the nervous system with its components. 1. Consists of the brain and spinal cord 2. Includes cranial and spinal nerves Central nervous system Peripheral nervous system

1 - Central nervous system 2 - Peripheral nervous system

Match the type of glial cell with its description. 1. Respond to infection in the CNS 2. Form myelin in the CNS 3. Form myelin in PNS 4. Most abundant glial cells in the CNS 5. Line internal cavities of the brain Astrocytes Ependymal cells Microglial cells Oligodendocytes Satellite cells Neurolemmocytes

1 - Microglial cells 2 - Oligodendocytes 3 - Neurolemmocytes 4 - Astrocytes 5 - Ependymal cells 6 - Satellite cells

Match the muscle of the pelvic floor with its function. 1. Voluntarily constricts urethra 2. Ejects urine; stiffens penis 3. Forms pelvic floor Coccygeus Bulbospongiosus External urethral sphicter

1 - external urethral sphincter 2 - bulbospongiosus 3 - coccygenus

Match the function with its associated nervous system category. 1. Receives information from skin 2. Innervates skeletal muscles 3. Receives information from the intestines 4. Innervates cardiac and smooth muscle somatic sensory somatic motor visceral sensory autonomic motor

1 - somatic sensory 2 - somatic motor 3 - visceral sensory 4 - autonomic motor

Match the muscles that move the arm with their actions. 1. Extends and adducts arm 2. Flexes arm 3. Prime mover of arm extension 4. Prime mover of arm flexion 5. Medially rotates arm biceps brachii (long head) subscapularis latissimus dorsi pectoralis major triceps brachii (long head)

1 - triceps brachii (long head) 2 - biceps brachii (long head) 3 - latissimus dorsi 4 - pectoralis major 5 - subscapularis

When our esophagus contracts involuntarily to move a bolus of food down, it is acting based on which subdivision of the motor nervous system? Autonomic Sensory Somatic

Autonomic

Which of the following thigh muscles has its insertion in the head of the fibula? Gracilis Adductor magnus Sartorius Biceps femoris

Biceps femoris

Check all of the muscles that are in the superficial layer of the urogenital triangle. Puborectalis Bulbospongiosus Ischiocavernosus Superficial transverse perineal muscle

Bulbospongiosus Ischiocavernosus Superficial transverse perineal muscle

During normal, relaxed exhalation, the internal intercostals contract to assist with this process. True False

False

Ganglia are clusters of neuron cell bodies located within the CNS. True False

False

Neurons are unique in that they do not require glucose or oxygen to function. True False

False

Which of the following muscles are in the anterior thigh compartment and flex the thigh? Check all that apply. Gracilis Iliacus Sartorius Pectineus Rectus femoris Psoas major

Iliacus Sartorius Rectus femoris Psoas major

Check all that are a function of the erector spinae muscles. Move the upper limbs Maintain posture Rotate the neck Extend the vertebral column

Maintain posture Extend the vertebral column

Which muscle is the most powerful of the masticatory muscles, and functions to elevate and protract the mandible? Mandibular Temporalis Masseter Pterygoid

Masseter

Which of the following glial cells form a myelin sheath around axons? Check all that apply. Astrocyte Oligodendrocyte Ependymal cell Neurolemmocyte

Oligodendrocyte Neurolemmocyte

Which muscle encircles the opening of the mouth? Orbicularis oris Corrugator supercilii Levator labii Risorius

Orbicularis oris

Check all of the muscles that flex the arm at the glenohumeral joint. Supraspinatus Teres minor Pectoralis major Deltoid (anterior fibers) Latissimus dorsi Coracobrachialis Biceps brachii (long head)

Pectoralis major Deltoid (anterior fibers) Coracobrachialis Biceps brachii (long head)

Check all that are a function of the nervous system. Processing and evaluating information Collecting information Responding to information

Processing and evaluating information Collecting information Responding to information

Check all that are true statements regarding the sensory and motor nervous systems. The sensory nervous system contains both PNS and CNS components. The somatic nervous system component of the motor nervous system conducts impulses from the CNS to skeletal muscles. The visceral sensory component of the sensory nervous system is under voluntary control. The motor nervous system contains both CNS and PNS components.

The sensory nervous system contains both PNS and CNS components. The somatic nervous system component of the motor nervous system conducts impulses from the CNS to skeletal muscles. The motor nervous system contains both CNS and PNS components.

The quadriceps femoris is the prime mover of knee extension. True False

True

The most powerful flexor of the forearm at the elbow is the brachialis. triceps brachii. brachioradialis. supinator.

brachialis.

The nerve impulse conduction along an unmeylinated axon is called ____________ conduction.

continuous

In a nerve, groups of axons are wrapped into separate bundles called ____________.

fasicles

The muscles that have their origin on the mandible and you would use to stick out your tongue are the left and right ______________ muscles.

genioglossus

The ______________ muscles of the tongue curl, squeeze, and fold the tongue during chewing and speaking; the ____________ muscles of the tongue are used in various combinations to accomplish the precise, complex, and delicate movements required for proper speech. intrinsic; extrinsic extrinsic; intrinsic

intrinsic; extrinsic

The collection of muscles in the pelvic floor that function to support the pelvic viscera and act as a sphincter at the anorectal junction, urethra, and vagina is the levator ani. external anal sphincter. gluteus maximus. coccygeus.

levator ani.

The abdominal muscle that extends vertically the entire length of the anteromedial abdominal wall and forms the traditional "six pack" is the transverse abdominis. rectus abdominis. external oblique. internal oblique.

rectus abdominis.

If you contract your left sternocleidomastoid muscle only, it rotates your head to the __________ side of the body.

right

Another term for the __________ system is the afferent nervous system.

sensory

The ___________ nervous system transmits information from receptors to the CNS, while the ___________ nervous system transmits information from the CNS to the rest of the body. sensory; motor motor; sensory autonomic; visceral somatic; autonomic

sensory; motor

The primary protractor of the scapula is the rhomboid major. trapezius. serratus anterior. pectoralis major.

serratus anterior.

The "voluntary" nervous system component of the motor nervous system is the ____________ motor subdivision.

somatic

he _________ sensory system includes sensory information such as touch, pain, pressure, vibrations, and the general senses. visceral motor peripheral somatic

somatic

The muscle that has its insertion on the mastoid process and has a bilateral action of flexing the neck is the splenius capitis. sternocleidomastoid. middle scalene.

sternocleidomastoid.

The abductor pollicis brevis functions to abduct the ___________.

thumb

The large, three-headed muscle that is the prime extensor of the forearm at the elbow joint is the __________

triceps