Anatomy and Physiology Questions

The question is what is the body really trying to regulate when it increases ventilation during exercise The equation for ACR above lists six different variables Is it one of those Which one is the KEY variable

Which of the following best describes a graded potential a graded potential is an excitatory signal that leads to an action potential a graded potential results from ion movement across a membrane O a graded potential is used to communicate along large distances O a graded potential is a positive or negative deviation of membrane potential from rest

Which of the following best describes temporal summation h an increase in the number of low strength signals from many neurons may be added together to more strongly influence the post synaptic neuron many graded potentials in succession in a post synaptic neuron an increase in strength of graded potential in a post synaptic neuron O a high frequency of signals from a pre synaptic neuron may be added together to more strongly influence the post synaptic neuron

O dendrites axon Onucleus Osynaptic end bulb Question 21 Which of the following is not a method used by the body to cease synaptic signal transmission O diffusion of neurotransmitters away from the synaptic cleft O enzymatic degradation of excess neurotransmitters O deployment of tiny microscopic bombs into the synaptic cleft W 1 pts

8 ECG Trace and Cardiac Cycle Figure 3 in the Course Guide Lab 3 The diagram correlates an ECG tracing with the electrical and mechanical events of a heart contraction Indicate what happens during events 1 6

any unce Inty 11 Cardiac Cycle Write out all of the steps for all of the stages of the cardiac cycle Use the bullet points above and the diagram to the right to help guide you figure 19 20 in the textbook Ch 19 Powerpoint slide set Start with the first steps given below a The SA node fires and the atria become depolarized electrical event b The atria contract which decreases the volume of the chambers contraction event C

Where do you think the chemoreceptors might be located Why

Match the term in one column with the appropriate definition description explanation in the opposite column Somatic Nervous System Visceral autonomic Nervous System Peripheral Nervous System Efferent neuron Bipolar neuron Interneuron Choose Choose A neruon with many processes radiating from the cell body Tracts of the spinal cord containing motor information A neuron with two distinct processes extending from the soma The division responsible for monitoring and coordinating voluntary activities The division including all sensory receptors spinal and cranial nerves The thin avascular deep layer of the meninges A neuron found in the CNS responsible for making sense of incoming messages A neuron responsible for relaying information to coordinate muscle contraction and glandular secretions The most superficial meningeal layer a crossing of specific tracts of the spinal cord before descending down the spinal cord The middle meningeal layer The division responsible for monitoring and regulating involuntary activities Choose Choose V

If body pH drops by only 0 05 pH units below normal acidosis results Why dont people develop acidosis when they exercise hint input output

Question 10 negative deviation of membrane potential from rest Which of the following best describes how resting membrane potential is maintained in a neuron Ocations are found outside of the cell while anions are found inside making the inside of the cell more negative relative to the outside O the combination of active transport cation pumps maintaining an unequal ion distribution and the inability of large anions to leave the cell mostly account for the relatively negative inside of the cell O active transport pumps work to maintain an unequal distribution of cations on either side of the membrane O anions attached to larger proteins cannot leave the cell so they make the inside of the cell more negative

5 What are Korotkoff sounds What produces the sounds

6 ECG Figure 1 in the Course Guide Lab 3 Figure 1 Electrocardiogram ECG Describe the events happening during 1 P wave 2 QRS complex 3 T wave 4 P R interval 5 Q T interval 6 End of T to following R

2 How should negotiators treat the roll up costs when negotiating wage changes

Question 14 Which of the following best describes the all or nothing principle Oif membrane potential does not reach 55mV it is difficult to induce an action potential O reaching threshold will always produce an action potential but action potentials could be of varying strengths an action potential will always induce another action potential in a post synaptic neuron Oif a membrane potential of 55mV is reached at the trigger zone an action potential will occur

O They are responsible for nourishing all Question 12 Identify the most accurate location where summation occurs in a neuron O the axon hillock O the dendrites the nucleus Othe initial segment

What type of information is carried by the cerebrospinal tract sensory O motor

Which of the following is the best synonym or synonymous phrase for integration separation summation blend O evaluation

Which of the following best describes a dermatome a dermatome refers to an organ or area of an organ innervated by a nerve a dermatome refers to an area of the skin innervated by a specific cranial nerve a dermatome refers to an organ or area of an organ innervated by a specific spinal nerve O a dermatome refers to an area of the skin innervated by a specific nerve

Which of the following describes an EPSP O Excitatory Causes depolarization of a post synaptic cell Excitatory Causes hyperpolarization of a post synaptic cell Inhibitory Causes hyperpolarization of a post synaptic cell Inhibitory Causes depolarization of a post synaptic cell

Which of the following best defines hyperpolarization Ohyperpolarization occurs when membrane potential deviates in a negative direction Ohyperpolarization when there is an efflux leaving of positively charged ions Ohyperpolarization occurs when there is an influx of negatively charged ions Ohyperpolarization occurs at the end of an action potential when the neuron over shoots

Which of the following describes an IPSP O Excitatory Causes depolarization of a post synaptic cell O Excitatory Causes hyperpolarization of a post synaptic cell Inhibitory Causes depolarization of a post synaptic cell O Inhibitory Causes hyperpolarization of a post synaptic cell

7 Fill in the blank The is the site for the generation of the formed elements of blood

4 Which portion of blood is measured to determine the hemocrit off o bactorial infection th

An EPSP will cause an action potential This statement is always false O always true sometimes true

Which of the following best describes the purpose of a Schwann cell The help form the blood brain barrier O They are responsible for myelinating axons O They are responsible for nourishing and protecting neurons

2 Of the components of blood which are the formed elements

Name the type of reflex given the following description In this reflex only one synapse exists between the sensory and motor neurons

s assign 5 Fill in the blank If a person is fighting off a bacterial infection the concentration of circulating should increase

In which branch of the nervous system are the following cells found Astrocytes Both Central O Peripheral

On which anatomical region of a neuron would you find the following type of channel Voltage gated potassium Oaxon O synaptic end bulb Odendrites nucleus Question 2

In which portion of the blood would you look for antibodies

6 If there is cell damage reported by endothelium cells which formed element increases their activity

What type of information is carried by the Spinothalamic tract Sensory Motor

Which of the following best defines a reflex a sequence of events used to identify a pathology a predictable contraction of skeletal muscle in response to a specific stimulus a fast predictable response to a specific stimulus

An EPSP will cause an action potential if there aren t any IPSPs to block it O the EPSP depolarizes the entire neuron EPSPs always cause an action potential O the EPSP depolarizes the cell to threshold

Identify the specific type of synapse found at the neuromuscular junction NMJ based on the neurotransmitter used

What is the benefit to anucleate RBCS What is the benefit of WBCs retaining all organelles

Identify the 5 components of a reflex arc and explain their purpose in a reflex Additionally give an example of a reflex in the body by providing the stimulus with the corresponding effect Edit Format Table

In this reflex integration occurs across the spinal cord Question 41 Name the type of reflex given the following description

improvisational italian comic the a medieval morality play the comedy of Plautus

10 Fill in the blank arise from megakaryocytes which reside in the bone marrow

Which of the following is a major element of a microbial cell O Copper O Cobalt O Hydrofuels Nitrogen Oxidase

Question 30 Which of the following best describes a spinal cord segment the area of the spinal cord a nerve innervates O a segment refers to the different areas of the spinal cord containing different tracts and columns the portion of a spinal cord in which one pair of spinal nerves enters and exits arom f the final our coper prons of the rain

Name the 4 plexuses of spinal nerves branching from the spinal cord Explain roughly which areas of the body are innervated by each plexus

Ich each part of growth phase to its respective main events in that phase death phase stationary phase lag phase vlog phase A the number of cells in the population increases rapidly B the reproductive rate is equals to the death rate C cells are adjusting to growth conditions thus growth curve is almost a plateau D spore formation is a common event

Match the following in the correct order of increasing size hierachy bacteria viruses molds protozoa v yeasts

8 Which hormone triggers RBC production WBC production Platelet production

1 Explain and give an example of intrinsic and extrinsic rewards

2 How can a manager motivate employees by meeting their higher level needs

4 Can you think of a specific motivational technique that would improve you in each of the four categories in Exhibit 8 3 Describe them and how they would apply to you