Muscle Contraction and Movement

Angular movements change the angle between two bones.

The muscle changes in length and moves the 'load'.

Motor neuron action potential, neurotransmitter release, muscle cell action potential, release of calcium ions from SR, ATP-driven power stroke, sliding of myofilaments

The site of calcium regulation differs in smooth muscle compared to skeletal muscle.

They exhibit spontaneous action potentials.

Certain smooth muscle cells can actually divide to increase their numbers.

Smooth muscle is characterized by all of the following EXCEPT there are more thick filaments than thin filaments

Paralysis of the hamstring muscles would make an individual unable to flex the knee.

TTriceps brachii is a powerful forearm extensor at the elbow joint.

The serratus anterior is known as the "boxer's muscle."

The transversus abdominis runs deep to the internal oblique.

The buccinator helps keep food between the grinding surfaces of the teeth during chewing.

Platysma tightens the neck and draws the corners of the mouth downward as in expressing horror.

The central nervous system uses frequency of action potentials to determine the strength of a stimulus.

Bipolar neurons are commonly found in the retina of the eye.

Acetylcholine is an excitatory neurotransmitter secreted by motor neurons innervating skeletal muscle.

Nervous system integrative function analyzes sensory information, stores information, makes decisions

Period after an initial stimulus when a neuron is not sensitive to another stimulus is absolute refractory period

The following is NOT a characteristic of neurons

Primary somatosensory cortex is located in the parietal lobe

Spinocerebellar tracts carry information about muscle or tendon stretch to the cerebellum

Ependymal cells. is the type of cells line the ventricles of the brain?

The subarachnoid space lies between these two layers of meninges: Arachnoid and pia.

Vital centers for the control of heart rate, respiration, and blood pressure are located in the medulla oblongata

Cell bodies of sensory neurons are located in the dorsal root ganglia of the spinal cord

The groove that separates the frontal lobe from the parietal lobe? central sulcus

Sciatic nerve is a combination of these two nerves: common fibular and tibial

Which nerve is compressed in carpal tunnel syndrome? median

Bell's palsy is characterized by paralysis of facial muscles

The correct simple spinal reflex arc: receptor, afferent neuron, integration center, efferent neuron, effector

Mixed cranial nerves containing both motor and sensory fibers include all EXCEPT which of the following? olfactory

Transduction refers to conversion of Stimulus energy into energy of a graded potential

The coxal joint is most likely found in the hip region of the body

The anatomical position is characterized by all of the following EXCEPT

With a family history of cardiovascular disease, which toast spread would be considered the most "heart healthy"? olive oil

The plasma membrane would become more stable, less fluid, and less permeable.

Cancerous cells can divide so rapidly that they will often produce a glycocalyx that is different than the other cells in the body. This may result in cells of the immune system recognizing the tumorous cells as foreign and destroying them

Desmosomes

Which of the following will NOT speed up the net rat of diffusion for glucose into a cell? Decreasing the number of phospholipids in the plasma membrane.

The lungs deliver a regular supply of oxygen to the blood, which is in turn circulated to most all the cells of the body. At the same time oxygen is consumed during aerobic cellular respiration within these cells. This implies that oxygen will passively diffuse into the cells

Your instructor gives you an unknown organ for you to examine and identify through microscopy. What should you do first with the sample? fix it with preservative

ciliated simple columnar epithelium