0 [{"id":337689,"quiz_id":"17097","answer_id":null,"answerType_id":"0","created_at":"2017-12-11 20:32:44","updated_at":"2017-12-11 20:32:44","questionName":"lifting up a glass to take a drink involves the elbow joint. which of the following correctly characterizes that joint","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":null,"explanation":"","question_score_id":null,"lang":null,"questionAudioPath":null},{"id":337679,"quiz_id":"17097","answer_id":null,"answerType_id":"0","created_at":"2017-12-11 19:50:58","updated_at":"2017-12-11 20:15:17","questionName":"if given the exact same amount of ATP which of the three fiver types would be able to contract for the longest amount of time?","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":7,"explanation":"","question_score_id":null,"lang":null,"questionAudioPath":null},{"id":337676,"quiz_id":"17097","answer_id":null,"answerType_id":"0","created_at":"2017-12-11 19:35:54","updated_at":"2017-12-11 20:15:17","questionName":"in an isotonic contraction the muscle","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":4,"explanation":"","question_score_id":null,"lang":null,"questionAudioPath":null},{"id":337684,"quiz_id":"17097","answer_id":null,"answerType_id":"0","created_at":"2017-12-11 20:23:17","updated_at":"2017-12-11 20:23:17","questionName":"Melanocytes and keratinocytes work together in protecting the skin from UV damage when keratinocytes ________. 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block

lifting up a glass to take a drink involves the elbow joint. which of the following correctly characterizes that joint

Select the correct answer(s).  

(0/0)

---

biaxial

pivot

cartilaginous

diarthrotic

none

if given the exact same amount of ATP which of the three fiver types would be able to contract for the longest amount of time?

Select the correct answer(s).  

(0/0)

---

fast glyoclytic and fast oxidative

fast oxidative

slow oxidative fibers

fast glycolytic

none

in an isotonic contraction the muscle

Select the correct answer(s).  

(0/0)

---

rapidly resynthesizes creatine phosphate to ATP

never converts pyruvate to lactate

changes in length and moves the load

does not change in length but increases tension

none

Melanocytes and keratinocytes work together in protecting the skin from UV damage when keratinocytes ________.

Select the correct answer(s).  

(0/0)

---

maintain the appropriate temperature so the product of the melanocyte will not denature

maintain the right pH in order for the malnocyte to synthesize melanin granules

provide the malnocyte with nutrients necessary for melanin synthesis

accumulate the melanin granules on their superficial portion, forming a UV-blocking pigment layer

none

during muscle contraction, myosin cross bridges attach to which active sites

Select the correct answer(s).  

(0/0)

---

actin filaments

thick filaments

z discs

myosin filaments

none

which of the following is a factor that affects the velocity and duration of muscle contraction

Select the correct answer(s).  

(0/0)

---

number of fibers stimulated

muscle length

load on the fiber

size of the fibers stimulated

none

Which type of skin cancer appears as a scaly reddened papule and tends to grow rapidly and metastasize

Select the correct answer(s).  

(0/0)

---

basal cell carcinoma

squamous cell carcinoma

adenoma

melanoma

none

the dermis has two major layers. which layer constitutes 80 % of the dermis and is responsible for the tension lines in the skin

Select the correct answer(s).  

(0/0)

---

the reticular layer

the hypodermal layer

the subcutaneous layer

the papillary layer

none

A high fever causes an enzyme to lose its three dimensional structure and function. Which bonds are broken when a protein denaturates.

Select the correct answer(s).  

(0/0)

---

hydrogen bonds

ionic

polar covalent

non polar covalent bonds

none

which of the following would be recruited later in muscle stimulation when contractile strength increase

Select the correct answer(s).  

(0/0)

---

motor units with the longest muscle fibers

many small motor units with the ability t o stimulate other motor units

large motor units with small, highly excitable nuerons

motor units with larger, less excitable nuerons

none

the sebaceous glands are simple alveolar g lands that secrete a substance known as sebum. the secretion of sebum is stimulated

Select the correct answer(s).  

(0/0)

---

as a protective coating when one is swimming

by high temperatures

by hormones, especially androgens

when the air temp drops

none

In which stage of mitosis do the identical sets of chromosomes uncoil and resume their chromatin form

Select the correct answer(s).  

(0/0)

---

telophase

metaphase

prophase

anaphase

none

hypothetically if a muscle were stretched to the point where thick and thin filaments no longer overlapped

Select the correct answer(s).  

(0/0)

---

cross bridge attachment would be optimum because of all the free binding sites on actin

ATP consumption would increase because the sarcomere is trying to contract

max force production would results befcause the muscle has a max range of travel

no muscle tension could be generated

none

what is the primary function of wave summation

Select the correct answer(s).  

(0/0)

---

increase muscle tension

prevent muscle fatigue

produce smooth continuous muscle contraction

prevent muscle relaxation

none

myasthenia gravis is a disease that is believed to be caused by autoimmune disorder, resulting in the loss of ACh receptors at the motor end plate of muscle fibers. Which of the following is likely to be a symptom of myasthenia gravis.

Select the correct answer(s).  

(0/0)

---

seizures and uncontrollable muscle movement

coma and loss of voluntary muscle movement

dehydration with headache

weakness of muscle