Human Anatomy Exam queries and
answers graded A+
The following are nerve plexuses of the human body.
a. cranial, cervical, lumbar sacral
b. cranial, brachial, lumbar, sacral
c. cervical, brachial, lumbar, sacral
d. cervical, brachial, lumbosacral, coccygeal - ANS✅✅c. cervical, brachial, lumbar, sacral
The brachial plexus innervates this region of the body.
a. head and neck
b. chest and upper extremity
c. abdomen
d. pelvis and lower extremity - ANS✅✅b. chest and upper extremity
The nerve plexuses provide sensory and motor innervation.
a. true
b. false - ANS✅✅a. true
Dermatomes are areas of skin supplied by nerves from a single spinal root.
a. true
b. false - ANS✅✅a. true
This is the general order of events for a reflex arc.
a. activation of a sensory receptor, information relayed to the CNS, response by the effector,
activation of a motor neuron
b. information relayed to the CNS, activation of a sensory receptor, activation of a motor neuron,
response by the effector
c. activation of a sensory receptor, information relayed to the CNS, activation of a motor neuron,
response by the effector
,d. response by the effector, activation of a motor neuron, information relayed to the CNS, activation
of a sensory receptor - ANS✅✅c. activation of a sensory receptor, information relayed to the CNS,
activation of a motor neuron, response by the effector
All four nerve plexuses innervate muscles and receive cutaneous sensory information.
a. true
b. false - ANS✅✅a. true
This plexus supplies small branches to two cranial nerves.
a. cervical
b. brachial
c. lumbar
d. sacral - ANS✅✅a. cervical
Trunks of the brachial plexus are differentiated as ___.
a. superior, middle, inferior
b. anterior and posterior
c. posterior, lateral, and medial
d. anterior, posterior, and lateral - ANS✅✅a. superior, middle, inferior
The sciatic nerve, the largest nerve in the body, originates from the ___ plexus.
a. cervical
b. brachial
c. lumbar
d. sacral - ANS✅✅d. sacral
Nerves that innervate muscles in the arm originate from the ___ plexus.
a. cervical
b. brachial
c. lumbar
d. sacral - ANS✅✅b. brachial
, The lumbar plexus originates from the ventral rami of ___.
a. T1-L5
b. T1-L4
c. T12-L4
d. T12-L5 - ANS✅✅c. T12-L4
This nerve splits in the area of the knee (popliteal region) to become the fibular nerve and tibial
nerve.
a. femoral nerve
b. inferior gluteal nerve
c. superior gluteal nerve
d. sciatic nerve - ANS✅✅d. sciatic nerve
A reflex is an immediate, voluntary motor response.
a. true
b. false - ANS✅✅b. false
These three regions comprise the brain stem.
a. pons, medulla oblongata, and cerebellum
b. diencephalon, pons, and medulla oblongata
c. diencephalon, mesencephalon, and pons
d. mesencephalon, pons, and medulla oblongata - ANS✅✅d. mesencephalon, pons, and medulla
oblongata
This area contains the "emotional brain" and is made up of the thalamus, hypothalamus,
hipocampus, amygdala, and olfactory bulb.
a. basal ganglia
b. limbic system
c. diencephalon
d. ventricles - ANS✅✅b. limbic system
An injury to this lobe of the brain would most likely affect motor skills.
answers graded A+
The following are nerve plexuses of the human body.
a. cranial, cervical, lumbar sacral
b. cranial, brachial, lumbar, sacral
c. cervical, brachial, lumbar, sacral
d. cervical, brachial, lumbosacral, coccygeal - ANS✅✅c. cervical, brachial, lumbar, sacral
The brachial plexus innervates this region of the body.
a. head and neck
b. chest and upper extremity
c. abdomen
d. pelvis and lower extremity - ANS✅✅b. chest and upper extremity
The nerve plexuses provide sensory and motor innervation.
a. true
b. false - ANS✅✅a. true
Dermatomes are areas of skin supplied by nerves from a single spinal root.
a. true
b. false - ANS✅✅a. true
This is the general order of events for a reflex arc.
a. activation of a sensory receptor, information relayed to the CNS, response by the effector,
activation of a motor neuron
b. information relayed to the CNS, activation of a sensory receptor, activation of a motor neuron,
response by the effector
c. activation of a sensory receptor, information relayed to the CNS, activation of a motor neuron,
response by the effector
,d. response by the effector, activation of a motor neuron, information relayed to the CNS, activation
of a sensory receptor - ANS✅✅c. activation of a sensory receptor, information relayed to the CNS,
activation of a motor neuron, response by the effector
All four nerve plexuses innervate muscles and receive cutaneous sensory information.
a. true
b. false - ANS✅✅a. true
This plexus supplies small branches to two cranial nerves.
a. cervical
b. brachial
c. lumbar
d. sacral - ANS✅✅a. cervical
Trunks of the brachial plexus are differentiated as ___.
a. superior, middle, inferior
b. anterior and posterior
c. posterior, lateral, and medial
d. anterior, posterior, and lateral - ANS✅✅a. superior, middle, inferior
The sciatic nerve, the largest nerve in the body, originates from the ___ plexus.
a. cervical
b. brachial
c. lumbar
d. sacral - ANS✅✅d. sacral
Nerves that innervate muscles in the arm originate from the ___ plexus.
a. cervical
b. brachial
c. lumbar
d. sacral - ANS✅✅b. brachial
, The lumbar plexus originates from the ventral rami of ___.
a. T1-L5
b. T1-L4
c. T12-L4
d. T12-L5 - ANS✅✅c. T12-L4
This nerve splits in the area of the knee (popliteal region) to become the fibular nerve and tibial
nerve.
a. femoral nerve
b. inferior gluteal nerve
c. superior gluteal nerve
d. sciatic nerve - ANS✅✅d. sciatic nerve
A reflex is an immediate, voluntary motor response.
a. true
b. false - ANS✅✅b. false
These three regions comprise the brain stem.
a. pons, medulla oblongata, and cerebellum
b. diencephalon, pons, and medulla oblongata
c. diencephalon, mesencephalon, and pons
d. mesencephalon, pons, and medulla oblongata - ANS✅✅d. mesencephalon, pons, and medulla
oblongata
This area contains the "emotional brain" and is made up of the thalamus, hypothalamus,
hipocampus, amygdala, and olfactory bulb.
a. basal ganglia
b. limbic system
c. diencephalon
d. ventricles - ANS✅✅b. limbic system
An injury to this lobe of the brain would most likely affect motor skills.
