Exam 2 Anatomy

Which of the following is correct?

The correct order our middle ear ossicles vibrates is, malleus, incus, and stapes

Which bone feature listed below is a depression on the anterior distal end of the humerus?

coronoid fossa

______ are the type of neurons related to out general senses.

Pseudounipolar neurons

The fold of dura mater found in between the cerebrum and the cerebellum is named:

tentorium cerebelli

Which of the following steps happens first regarding muscle contraction?

A motor neuron releases acetylcholine

Which muscle can both flex the arm and the forearm?

Biceps brachii

Trieps Brachii is opposed in extension of the elbow by which antagonistic muscle?

Brachioradialis

Which brain region confers you the fine motor coordination to take handwritten notes?

Cerebellum

Which of the following statements is true?

Choroid plexus is a vascularized membrane found within all ventricles of the brain

The spinal cord white matter:

Contains lots of myelianted axons

The _________ prevents the lateral displacement of the spinal cord by anchoring the spinal cord to the ______.

Denticulate ligaments; arachnoid and dura mater

Which of the following muscles depresses the mandible when contracting?

Digastric

______ are crucial in the CNS because they ______

Ependymal cells; produce cerebrospinal fluid

Which of the following regions corresponds to the thigh?

Femoral

What are the groups of neuronal bodies called when located in the PNS?

Ganglia

A patient presents with a loss in taste. After several examinations, the doctor concludes that such loss is caused by a damage in one or more cranial nerves. Which of the following cranial nerves and corresponding area could be responsible for this?

Glossopharyngeal nerve; posterior third of the tongue

Which of the following is correct about the subdural space?

It is between the dura mater and arachnoid mater

Which statement below defines spongy bone?

It is composed of trabeculae

During muscle contraction, the thin filaments move towards which part of the sarcomere?

M Line

Excitatory neurotransmitters cause the opening of _______ on the post-synaptic neuron.

Na+ ligated-gated channels

Which of the following statements is correct?

Neurogenesis is the ability of our nervous system to create new neurons from stem cells

The area of the eye where we cant see because it is the point of entrance and exit of blood vessels and the optic nerve is names:

Optic disc

Which spinal nerve is responsible for sensory and motor information on the posterior aspect our upper limbs:

Radius nerve

Which describes the basic connectivity of a reflex arc?

Receptor -> Sensory neuron-> Interneuron-> Motor Neuron -> Effector

Which torso muscles are involved in the flexion of the abdomen?

Rectus abdominis, psoas major

While driving on the highway, Robert had a car accident. After medical examinations and scanning, it was found that he had an injury at the level of cervical vertebrae number 6. What trunk and nerves are likely to be compromised due to the accident?

Superior trunk, musculocutaneous, axillary, radial and median nerves

Which posterior rotator cuff muscles is most superior?

Supraspinatus

Where do we find perception of olfactory stimuli?

Temporal lobe

Which statement about the diaphragm openings is true?

The inferior vena cava passes through the caval opening

Which bone feature can only be found in thoracic vertebrae?

Transverse costal facet

Which of the following muscles causes adduction of the thigh a the hip?

adductor longus

The apical surface of a pseudostratified ciliated epithelium

contains cilia

Somatic motor nerves are also called _______ neurons. They related to the ______

efferent; conscious motor information

The spinal cord:

has 8 cervical spinal nerves

Which of the following statements is correct?

Axons transport the electrical signal towards the terminal button

Acoustic neuroma is a serious nonmalignant tumor that affects CN VIII; Vestibulocochlear nerve. As the tumor grows, it compresses this nerve and causes serious symptoms. What is most likely to occur as a result of this tumor?

Loss of balance and equilibrium

You were entertaining kids at a party. You had your eyes closed and was playing of moving your limbs very fast in all different directions, and you could fell where your limbs were! Since you had your eyes closed, you couldnt see that a kid brought a chair closer and you hit yourself. What two receptors were stimulated?

Proprioreceptors and nociceptors

Which of the following muscle rules is correct?

Origin is always proximal

A patient was diagnosed with dorsal spinal cord injury at the level of C6. What will the patient experience?

Patient will be able to control upper and lower limbs muscles. However, patient will NOT notice changes in temperature in these areas.

Which bundle of white matter is involved with the communication between the primary motor cortex and the lower brain regions such as the brain stem?

Projection fibers

Which medial muscle belongs to the group known as the "hamstrings"?

semitendinosus and semimembrinosus

Which of the following muscles causes plantar flexion?

soleus