2. Jolene wakes suddenly to her alarm clock and realizes that she is late for her...

2. Jolene wakes suddenly to her alarm clock and realizes that she is late for her 9:15am CBIO2210 class. She jumps to her feet, feels dizzy and lightheaded for a moment, then hops into the shower. Draw a diagram / flowchart / picture of the sequence of events that occurred when she jumped up that overcame her dizzy feeling and prevented her from losing consciousness. Include the receptors, the control center, at least one effector site, information traveling between receptors / control center / effectors, and the response.

Solutions

Expert Solution

When Jolene woke up and realized that she was late for class, she began hurriedly doing everything. When one stands up suddenly after lying down for a long time, gravity causes blood to pool in the veins of the leg. This sudden decrease in venous return to the heart causes the blood pressure to fall. This can make the person feel dizzy and light-headed. When this happens, the baroreceptors in the aortic arch and carotid sinus get activated and the baroreceptor reflex sets in. The baroreceptor reflex ensures that the blood pressure to the brain is maintained and one does not lose consciousness.

Receptors - Baroreceptors in the Aortic arch and Carotid Sinus

Control center - Brainstem (nucleus of the solitary tract)

Effector sites - Smooth muscles in the walls of the artery

Response - Stimulation of the sympathetic nervous system. Contraction of the smooth muscles in the arteries leading to vasoconstriction and compensatory rise in blood pressure.

Sydney Mullin answered 1 year ago

Next > < Previous

Related Solutions

create a digital alarm clock using multisim software

Brooke is moving out of her parents’ house into her first apartment. While packing she realizes...

Brooke is moving out of her parents’ house into her first apartment. While packing she realizes she has a lot of shoes – 42 pair, in fact. She wonders if most women have as many shoes as she does, so for her experimental psychology project she sends surveys to120 women from her college and asks how many pairs of shoes they have. She finds that, on average, the women have15 pair of shoes (sd =2.50). Given this information, does Brooke...

Leah realizes that she cannot wait until her appointment to receive medical care; she quickly goes...

Leah realizes that she cannot wait until her appointment to receive medical care; she quickly goes to the emergency room. After a mountain of questions about Leah’s symptoms and medical history, the doctors decide to admit her for further testing. She is transferred to the neurology unit and the doctors request she undergo a series of laboratory tests, including an MRI and a spinal tap. In the meantime, the doctors prescribe high dosages of steroids to help alleviate the symptoms....

Alexis is a 14-year-old gymnast. Her days are extremely busy. She wakes up at 7:00 AM...

Alexis is a 14-year-old gymnast. Her days are extremely busy. She wakes up at 7:00 AM and needs to be at school by 7:30 AM. Breakfast is usually eaten in the car on the way to school; lunch is purchased in the school cafeteria. The school day lasts until 3:00 PM, after which she heads to the gym. Practice runs from 3:30 PM until 7:00 PM. After her parents pick her up from the gym, they typically go to a...

Write a code of digital alarm clock 8051 microcontroller using pin AT89S52

Q32 The manufacturer of a quartz travel alarm clock claims that, on the average, its clocks...

Q32 The manufacturer of a quartz travel alarm clock claims that, on the average, its clocks deviate from perfect time by 30 seconds per month, with a standard deviation of 10 seconds. Engineers from a consumer magazine purchase 40 of the clocks and ﬁnd that the average clock in the sample deviated from perfect accuracy by 34 seconds in one month. [4 Marks] (a) If the manufacturer’s claim is correct (i.e., seconds, seconds), what is the probability that the average...

1. Arsema is in her late twenties. She is still single so her consumption behavior is...

1. Arsema is in her late twenties. She is still single so her consumption behavior is different from that of her same-aged friends who have already married and had children. This suggests that ___________________________________. family life cycle is a useful segmentation variable for many types of products segmenting a marketing isn't always helpful for marketers marketers should focus on one variable when performing a segmentation analysis psychographic variables are always the best segmentation variable age and gender always leads to...

A woman aged 28 years is in labour when she suddenly collapses. This is her fourth...

A woman aged 28 years is in labour when she suddenly collapses. This is her fourth pregnancy and she has had three previous spontaneous vaginal deliveries at term. This pregnancy has been uncomplicated and she has been admitted with contractions at 37 weeks and 6 days. On arrival on the labour ward the fetus was palpated to be normal size, cephalic and 3/5 palpable abdominally. The cervix was 3 cm dilated and the membranes were intact. Blood pressure and urinalysis...

Phoebe realizes that she has charged too much on her credit card and has racked up...

Phoebe realizes that she has charged too much on her credit card and has racked up $5,000 in debt. If she can pay $250 each month and the card charges 20 percent APR (compounded monthly), how long will it take her to pay off the debt, in months? (Round your answer upwards to the nearest whole number of months and do not use decimals. For example, 9.6 months rounds to 10 months.)

Subjects