Questions and Answers
What determines the Effective Filtration Pressure in the glomerular filtration process?
Glomerular Hydrostatic Pressure (GHP) and Capsular Colloid Osmotic Pressure (CCOP)
What is one of the factors that can affect Glomerular Filtration Rate (GFR)?
Changes in blood pressure
Which cells release renin and trigger the Renin-Angiotensin-Aldosterone System (RAAS)?
Macula densa cells
What substances are primarily reabsorbed in the Proximal Convoluted Tubule (PCT)?
Signup and view all the answers
Which hormones control the reabsorption of water, sodium, and bicarbonate in the Distal Convoluted Tubule (DCT) and Collecting Duct?
Signup and view all the answers
Which mechanism is responsible for creating the medullary osmotic gradient in the kidney?
Signup and view all the answers
What is regulated by the Countercurrent Exchanger to maintain the medullary osmotic gradient?
Signup and view all the answers
'Renal Clearance' primarily refers to the ability of the kidneys to:
Signup and view all the answers
What is the function of the accessory glands in the male reproductive system?
Signup and view all the answers
Which structure is involved in the neural control of the sexual response in males?
Signup and view all the answers
What is the primary function of the ovaries in the female reproductive system?
Signup and view all the answers
Which structure is involved in pregnancy maintenance and hormone production in females?
Signup and view all the answers
In genetics, what does the term 'allele' refer to?
Signup and view all the answers
What is the outcome of incomplete dominance in genetic inheritance?
Signup and view all the answers
Which factor determines an individual's blood group in multiple-allele inheritance?
Signup and view all the answers
'Polygenic' vs. 'complex' inheritance primarily differs in which aspect?
Signup and view all the answers
'XY vs. XX' karyotypes are commonly associated with determining which genetic factor?
Signup and view all the answers
What is the primary hormone responsible for regulating water gain by acting on the kidneys?
Signup and view all the answers
Which of the following is a common symptom associated with the activation of thirst centers in the body for regulating water gain?
Signup and view all the answers
What is a possible cause of hyponatremia, a condition characterized by low sodium levels in the blood?
Signup and view all the answers
Which of the following hormones plays a crucial role in regulating potassium levels in the body?
Signup and view all the answers
In respiratory compensation, how does the body regulate pH during acidosis?
Signup and view all the answers
Which of these buffer systems plays a significant role in maintaining pH balance within cells?
Signup and view all the answers
What type of fluid imbalance is characterized by swelling due to excess fluid in the interstitial spaces?
Signup and view all the answers
Which mechanism primarily creates the medullary osmotic gradient in the kidney?
Signup and view all the answers
What condition is characterized by low sodium levels in the blood and can be caused by excessive water intake?
Signup and view all the answers
What process is responsible for swelling in the interstitial spaces due to excess fluid?
Signup and view all the answers
Which hormone primarily regulates water gain by acting on the kidneys and promoting water reabsorption?
Signup and view all the answers
What is a common symptom associated with the activation of osmoreceptors in the body for regulating water balance?
Signup and view all the answers
What is the primary function of Buffer systems like protein, phosphate, and carbonic acid/bicarbonate in the human body?
Signup and view all the answers
What is one of the main factors controlled by three hormones - renin, aldosterone, and ADH - to maintain sodium levels in the body?
Signup and view all the answers
How does respiratory compensation regulate pH during acidosis?
Signup and view all the answers
What structures are part of the male reproductive system accessory glands?
Signup and view all the answers
What is the primary hormone responsible for regulating potassium levels in the body?
Signup and view all the answers
Which of the following structures is involved in pregnancy maintenance and hormone production in females?
Signup and view all the answers
What is the difference between genotype and phenotype?
Signup and view all the answers
Which factor determines an individual's blood group in multiple-allele inheritance?
Signup and view all the answers
What is the outcome of incomplete dominance in genetic inheritance?
Signup and view all the answers
Which structures make up the interstitial cells in males?
Signup and view all the answers
What represents a haploid cell number?
Signup and view all the answers
What does polygenic inheritance primarily involve?
Signup and view all the answers
What determines the Glomerular Filtration Rate (GFR) of the kidneys?
Signup and view all the answers
Which cells are responsible for releasing renin triggering the Renin-Angiotensin-Aldosterone System (RAAS)?
Signup and view all the answers
What do the Tubular Reabsorption processes primarily involve in the Proximal Convoluted Tubule (PCT)?
Signup and view all the answers
Which mechanism contributes to the regulation of Glomerular Filtration Rate (GFR) by responding to sodium chloride levels in the distal nephron?
Signup and view all the answers
Which process involves the control of water, sodium, and bicarbonate reabsorption in the DCT and Collecting Duct?
Signup and view all the answers
What is the primary function of the Countercurrent Exchanger in renal physiology?
Signup and view all the answers
What mechanism contributes to the regulation of water loss in the body through sweating, exhalation, and urinary salts?
Signup and view all the answers
Which hormone primarily controls the reabsorption of bicarbonate ions in the kidneys to regulate pH balance?
Signup and view all the answers
In the regulation of sodium levels, what factor distinguishes hypo- from hypernatremia?
Signup and view all the answers
Which condition is characterized by an excess of potassium in the blood, posing risks to cardiac function?
Signup and view all the answers
What is the primary role of buffer systems like protein, phosphate, and carbonic acid/bicarbonate in the human body?
Signup and view all the answers
What plays a significant role in creating the medullary osmotic gradient in the kidney to facilitate water reabsorption?
Signup and view all the answers
What is the primary function of the bulbourethral gland in the male reproductive system?
Signup and view all the answers
In the male reproductive system, what is the function of the vas deferens?
Signup and view all the answers
What is the role of corpus luteum in the female reproductive system?
Signup and view all the answers
Which structure in the female reproductive system is primarily involved in the transport of oocytes from the ovaries to the uterus?
Signup and view all the answers
What neural control mechanism plays a significant role in the sexual response in both males and females?
Signup and view all the answers
Which gland produces a significant portion of the seminal fluid in males?
Signup and view all the answers
What is the main factor that determines Effective Filtration Pressure in the glomerular filtration process?
Signup and view all the answers
Which cells release renin, triggering the Renin-Angiotensin-Aldosterone System (RAAS) in response to low blood pressure?
Signup and view all the answers
What is the primary role of the Countercurrent Multiplier in the kidney physiology?
Signup and view all the answers
Which hormone is responsible for controlling water reabsorption in the DCT and Collecting Duct by promoting sodium retention?
Signup and view all the answers
In renal physiology, what is the primary function of the Tubuloglomerular Feedback mechanism?
Signup and view all the answers
What type of substances are primarily secreted in the Distal Convoluted Tubule (DCT) and Collecting Duct?
Signup and view all the answers
Study Notes
Urinary System Physiology
- Glomerular filtration: occurs in the renal corpuscle, filtration membrane filters substances
- Pressure gradients: GHP, CCOP, CHP, GCOP determine Effective Filtration Pressure (EFP)
- Glomerular Filtration Rate (GFR): affected by EFP, afferent/efferent arteriole diameter, and blood pressure
- Regulation of GFR: 2 autoregulatory mechanisms - Myogenic mechanism and Tubuloglomerular Feedback
- Macula densa cells and Juxtaglomerular cells release renin, triggering RAAS, which can be blocked
Tubular Reabsorption and Secretion
-
PCT: reabsorbs water, ions, urea, organic nutrients, and water-soluble vitamins
-
Nephron loop: descending and ascending properties, reabsorbs water and ions
-
DCT and Collecting duct: reabsorbs water, sodium, and bicarbonate, controlled by ADH, aldosterone, and ANH
-
Transport maximum: a limit to the amount of substances reabsorbed
-
PCT: secretes drugs and H+
-
Nephron loop: secretes urea
-
DCT and Collecting duct: secretes H+, K+, and ammonium ions
Regulating Urine Concentration
- Countercurrent multiplier: creates medullary osmotic gradient
- Recycling of urea: creates medullary osmotic gradient
- Countercurrent exchanger: maintains medullary osmotic gradient
Urine Composition and Renal Clearance
- Urine composition: regulated by the kidneys
- Renal clearance: a measure of the kidney's ability to remove substances from the blood
- Micturition reflex: involves external and internal sphincters, and can be affected by incontinence
Fluid, Electrolyte, and Acid-Base Homeostasis
- Body fluid compartments: relative volumes of extracellular and intracellular fluids
- Fluid balance: regulated by thirst centers, dry mouth, osmoreceptors, and decreased blood pressure
- Fluid imbalance: edema and hypovolemia
- Sodium regulation: controlled by 3 hormones, with hypo- and hypernatremia as imbalances
- Potassium regulation: controlled by aldosterone, with hyperkalemia as an imbalance
- pH scale: Acidosis vs. Alkalosis
- Buffer systems: protein, phosphate, and carbonic acid/bicarbonate
- Respiratory compensation: regulates pH through hyper- and hypoventilation
- Renal compensation: regulates pH through H+ and bicarbonate ion reabsorption and secretion
- Acid-base imbalances: metabolic acidosis/alkalosis, respiratory acidosis/alkalosis
Genital Systems
- Assigned male: testes location, structure, and function, spermatogenesis, and accessory glands
- Assigned female: ovaries location, structure, and function, oogenesis, and accessory glands
- Perineum: urogenital and anal triangles
- Ovaries: location, structure, and function
- Uterine tubes, uterus, vagina, and vulva: structure and function
- Mammary glands: structure and function
- Neural control of sexual response: regulated by hormones and neurotransmitters
Inheritance
- Haploid, diploid, and zygote: chromosome number and definitions
- Inheritance, genetics, genome, and gene: definitions and concepts
- Nucleic acid structure: DNA, nucleotides, complementary base pairing, antiparallel, and packing
- Allele vs. mutation: PKU - dominant vs. recessive trait
- Genotype vs. phenotype: concepts and examples
- Incomplete dominance: sickle cell anemia
- Multiple-allele inheritance: ABO blood groups
- Complex inheritance: polygenic vs. complex - height
- Karyotypes: XY vs. XX
- Sex-linked inheritance: red/green colour blindness
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.