Search found 60 matches

RETURN_TO_SEARCH_ADV

by jxxu20
November 3rd, 2019, 12:58 pm
Forum: Question Marathons
Topic: Anatomy and Physiology B/C
Replies: 43
Views: 2162

Re: Anatomy and Physiology B/C

1. What three pigments are responsible for skin color? Describe in one or two sentences the purpose of each. 2. What component of the skin is responsible for causing goosebumps, and what is it innervated by? 3. Why are epidermal lamellar secretions important to the skin? In which layer of the epider...
by jxxu20
September 14th, 2019, 8:06 am
Forum: Question Marathons
Topic: Heredity B/Designer Genes C
Replies: 13
Views: 739

Re: Heredity B/Designer Genes C

1:2:1
by jxxu20
July 23rd, 2019, 1:27 pm
Forum: 2019 Study Events
Topic: Disease Detectives B/C
Replies: 203
Views: 26665

Re: Disease Detectives B/C

This might be a little bit early, but should participants in Division C know Koch's Postulates? I'm new to this event and did research on everything mentioned in 2019's rules, which included Hill's criteria for causality; thus, is it necessary to research the postulates? Also, this question has defi...
by jxxu20
March 11th, 2019, 1:26 pm
Forum: 2019 Question Marathons
Topic: Anatomy and Physiology B/C
Replies: 179
Views: 15861

Re: Anatomy and Physiology B/C

1. UTI
2. Brain, cornea of the eye, bone marrow
3. Fewer gap junctions, fiber diameter decreased
4. Neurogenic DI is caused by a decreased secretion of ADH; nephrogenic DI is caused by the kidneys' decreased ability to concentrate urine because of resistance to ADH action.
by jxxu20
March 10th, 2019, 2:11 pm
Forum: 2019 Question Marathons
Topic: Anatomy and Physiology B/C
Replies: 179
Views: 15861

Re: Anatomy and Physiology B/C

Well done!|1. The inferior thyroid arteries and veins are also involved in thymic circulation. 2. THF (thymic humoral factor) increases a T cell's immune response to viruses. 3a. Correct 3b. Correct 4. Correct Also, to respond to farmerjoe279's question, I try to read as many selections from textbo...
by jxxu20
March 8th, 2019, 5:17 pm
Forum: 2019 Question Marathons
Topic: Anatomy and Physiology B/C
Replies: 179
Views: 15861

Re: Anatomy and Physiology B/C

1. What arteries supply the thymus, and what veins drain it? 2. Differentiate between the functions of thymosin, thymulin, thymopoietin, and THF in T cell development (no need to go into chemical mechanisms). 3a. Jane, who does A&P as one of her SciOly events, is in math class one day. Mrs. Lymphton...
by jxxu20
March 7th, 2019, 6:44 pm
Forum: 2019 Question Marathons
Topic: Potions & Poisons B
Replies: 58
Views: 4408

Re: Potions & Poisons B

Yup!
by jxxu20
March 7th, 2019, 2:03 pm
Forum: 2019 Question Marathons
Topic: Anatomy and Physiology B/C
Replies: 179
Views: 15861

Re: Anatomy and Physiology B/C

1. Vasoconstriction
2. Pharyngeal (adenoids)
3. Chemotaxis
4. Preload, contractility, afterload
5. True
by jxxu20
March 6th, 2019, 3:39 pm
Forum: 2019 Lab Events
Topic: Potions and Poisons B
Replies: 73
Views: 10930

Re: Potions and Poisons B

Hi, My state tournament is next week, and I was wondering to what extent ESs tend to test participants on conductivity testing. I know it's in the rulebook, but I haven't heard of anyone who got tested on it. I'd also like to know how to do that, so it'd be great if anyone could give me an explanati...
by jxxu20
March 5th, 2019, 3:46 pm
Forum: 2019 Question Marathons
Topic: Anatomy and Physiology B/C
Replies: 179
Views: 15861

Re: Anatomy and Physiology B/C

Nicely done!|1a. SR is correct, and the percentage is 20%. 1b. Correct 2. Correct 3. Close -- should be right atrium and venules 4a. Correct 4b. Poiseuille's equation assumes incompressible and laminar flow. In simpler terms, this means that the equation assumes that the volume of blood stays the s...

RETURN_TO_SEARCH_ADV