Urinary and reproductive  PHYSIOLOGY

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Questions and Answers

What is the most important route of waste removal

  • Urination (correct)
  • Defecation
  • Digestion
  • Perspiration

Produces urine

  • Paired uterers
  • Paired kidneys (correct)
  • urinary bladder
  • Urethra

Transports urine to urinary bladder

  • urethra
  • loop of henle
  • ureters (correct)
  • proximal convoluted tubule

Collects and stores urine

<p>Urinary bladder (D)</p> Signup and view all the answers

Transports urine out of the body

<p>Urethra (B)</p> Signup and view all the answers

Why is erythropoietin important

<p>Its a hormone needed for RBC production and some prostaglandins (C)</p> Signup and view all the answers

The kidneys produce some prostaglandins

<p>True (A)</p> Signup and view all the answers

The kidneys help maintain homeostasis by manipulating _________________

<p>The composition of blood plasma (B)</p> Signup and view all the answers

The kidneys ability to manipulate the composition of blood plasma helps to

<p>Both A and C (D)</p> Signup and view all the answers

What are the substances kidneys help to get rid of that can become toxic if they build up

<p>Both A and B (D)</p> Signup and view all the answers

Which of the following is NOT a homeostatic function of the kidney

<p>They are all homeostatic functions of the kidney (D)</p> Signup and view all the answers

The amount of urine produced is controlled by _________

<p>Both A and B (D)</p> Signup and view all the answers

Maintains fluid balance regulation

<p>ADH and aldosterone (A)</p> Signup and view all the answers

In order to maintain acid-base balance regulation what ions must be removed from blood and excreted in urine

<p>Hydrogen and bicarbonate ions (C)</p> Signup and view all the answers

The kidneys have close association with the endocrine system, therefore they can influence the rate of release of some hormones, what are they

<p>Both A and B (D)</p> Signup and view all the answers

The kidney influences the release of ADH from the

<p>Posterior pituitary gland (B)</p> Signup and view all the answers

The mineralocorticoid secreted by the cortex of the adrenal gland is

<p>Aldosterone (C)</p> Signup and view all the answers

Specialized cells in the kidneys produce

<p>Both B AND C (D)</p> Signup and view all the answers

There are 3 MAIN mechanisms of renal waste elimination, what are they

<p>Filtration of blood, reabsorption of useful substances, secretion of waste products (A)</p> Signup and view all the answers

Filtration of blood occurs in the

<p>Renal corpuscle (B)</p> Signup and view all the answers

The fluid that is filtered out of blood is called

<p>Glomerular filtrate (A)</p> Signup and view all the answers

The glomerular capillaries have ____________ which forces plasma out of the capillaries into the ________________

<p>high blood pressure, capsular space of the Bowmans caosule (C)</p> Signup and view all the answers

The transfer of plasma out of the glomerular capillaries is aided by _________

<p>Both A and B (D)</p> Signup and view all the answers

Both blood cells and plasma proteins are too ________ to __________

<p>big, pass through the fenestrations in the capillary endothelium (B)</p> Signup and view all the answers

Too big to pass through the capillary endothelium

<p>Blood cells and plasma proteins (A)</p> Signup and view all the answers

The presence of abnormal amounts of protein in the urine is used as

<p>An indicator of glomerular damage (C)</p> Signup and view all the answers

How fast blood plasma is filtered as it passes through the glumerolus is termed ___________--

<p>Glomerular filtration rate (B)</p> Signup and view all the answers

What is GFR dependent on

<p>Rate of blood flow to the kidney (C)</p> Signup and view all the answers

Approximately ______ of the plasma is removed from the blood circulation every minute

<p>25% (A)</p> Signup and view all the answers

_______ reduces the volume of glomerular filtrate (urine) produced

<p>Reabsorption (C)</p> Signup and view all the answers

Glomerular filtrate contains waste products BUT __________

<p>It also contains products the body needs to maintain homeostasis (C)</p> Signup and view all the answers

Reabsorption occurs from the ____ into the ______

<p>tubules of the nephron, peritubular capillaries (B)</p> Signup and view all the answers

Glomerular filtrate leaves bowmans capsule and enters the ________, now the filtrate is called _________

<p>Proximal convoluted tubule, tubular filtrate (C)</p> Signup and view all the answers

Approximately ____ of reabsorption occurs in the PCT

<p>65% (D)</p> Signup and view all the answers

80% of _________ is reabsorbed

<p>Both B and C (D)</p> Signup and view all the answers

100% of _____ are reabsorbed

<p>Glucose and amino acids (B)</p> Signup and view all the answers

Reabsorption occurs via

<p>All of the above (D)</p> Signup and view all the answers

____________ "hitch a ride" on the same carrier protein and are ________ transported into PCT epithelial cells. This is called _____________

<p>Glucose and amino acids, passively, sodium cotransport (B)</p> Signup and view all the answers

Reabsorption of _________ takes place in the ___________- via simple diffusion

<p>Potassium, PCT, ascending loop of Henle, and DCT (C)</p> Signup and view all the answers

_________ reabsorption takes place in ___________ via unknown mechanisms that involve _____

<p>Calcium, PCT, ascending loop of Henle, and DCT; Vit D, PTH and Calcitonin (B)</p> Signup and view all the answers

____________- is reabsorbed from _____ and the collecting duct and is increased by ______

<p>Magnesium, PCT, ascending loop of Henle; PTH (C)</p> Signup and view all the answers

Most secretion takes place in

<p>The DCT (A)</p> Signup and view all the answers

_________________ are eliminated by secretion in the DCT

<p>All of the above (D)</p> Signup and view all the answers

Urine volume is determine by _____________________ when it reaches the renal pelvis

<p>the amount of water in the tubular filtrate (B)</p> Signup and view all the answers

ADH acts on the _____________ to promote water reabsorption

<p>DCT and collecting ducts (C)</p> Signup and view all the answers

Without ADH water will not be reabsorbed which will cause increased urine volume, termed _________

<p>Polyuria (B)</p> Signup and view all the answers

What causes an osmotic imbalance that results in water flowing back into the bloodstream along with sodium

<p>Increased reabsorption of sodium in the DCT and collecting ducts due to Aldosterone (C)</p> Signup and view all the answers

Aldosterone increases reabsorption of ____ in the ____ and ____ back into the blood

<p>sodium, DCT, collecting ducts (B)</p> Signup and view all the answers

Expulsion of urine from urinary bladder into urethra for elimination from the body is termed =

<p>Both A and B (D)</p> Signup and view all the answers

Reabsorption of sodium requires

<p>Both A and B (C)</p> Signup and view all the answers

For any substance to be reabsorbed it must

<p>All of the Above (D)</p> Signup and view all the answers

As glomerular filtrate enters the PCT ______ attaches to a carrier molecule in the tubular filtrate (___) and is transported passively into the _____ of the PCT epithelial cells

<p>Sodium, facilitated diffusion, cytoplasm (B)</p> Signup and view all the answers

Sodium reabsorption occurs in the PCT, but additional reabsorption also occurs in the

<p>Both A and B (C)</p> Signup and view all the answers

___________ passively follows sodium to balance out the ________ in the interstitium caused by the ______ sodium ions being pumped into the interstitial fluid

<p>Chloride, positive charge, positive (A)</p> Signup and view all the answers

After sodium cotransport, sodium is actively ___________ and it enters the peritubular capillaries

<p>Pumped out of the cell into the interstitial fluid (C)</p> Signup and view all the answers

Sodium ions are usually exchanged for _____ that are then secreted into the tubular filtrate. This occurs under the influence of ?

<p>All of the above (D)</p> Signup and view all the answers

Increases reabsorption of sodium in the DCT and collecting ducts back into the blood

<p>Aldosterone (B)</p> Signup and view all the answers

If the ___________ of glomerular capillaries is damaged _____________ can leak into the glomerular filtrate

<p>Endothelium, proteins and blood cells (B)</p> Signup and view all the answers

If the endothelium of glomerular capillaries is damaged proteins and blood cells can leak into the glomerular filtrate. __________ they will show up and they will show up as abnormal constituents of the urine

<p>Because there isn't a mechanism to reabsorb them (A)</p> Signup and view all the answers

Ureters exit the kidney at the hilus and enter the bladder _____ at an oblique angle

<p>Near the neck of the bladder (C)</p> Signup and view all the answers

Urinary bladder

<p>Collects and stores urine as it is produced and releases it from the body (B)</p> Signup and view all the answers

Fullness of urinary bladder is detected by _________

<p>Stretch receptors in bladder wall (D)</p> Signup and view all the answers

When the trigger point is reached, ______ is activated and returns a motor impulse and the smooth muscle of the wall ______. This is responsible for the sensation of having to urinate

<p>A spinal reflex, contracts (B)</p> Signup and view all the answers

__________ control of the muscular sphincter around the _________ leads to temporary control of urination

<p>Voluntary, neck of the bladder (C)</p> Signup and view all the answers

Continuation of the neck of bladder runs through the pelvic canal to the outside of the body through the __________ in males and the _________ in females

<p>Penis, vestibule of the vulva (B)</p> Signup and view all the answers

Transports spermatozoa and accessory reproductive gland secretions in male

<p>Urethra (C)</p> Signup and view all the answers

Cell division

<p>Ensures that each animal has a unique genetic makeup (A)</p> Signup and view all the answers

Animals may look alike but unless they are _______- they are not the same

<p>Both (C)</p> Signup and view all the answers

Contain the genetic material (blue print) for all the structures and functions in the body

<p>Chromosomes (D)</p> Signup and view all the answers

Where are chromosomes located

<p>Within coiled masses of DNA in the cells nucleus (B)</p> Signup and view all the answers

For the body to function correctly

<p>All cells must have identical genetic information except the eggs and sperm (C)</p> Signup and view all the answers

Fertilization

<p>Spermatozoan penetrating into the cytoplasm of an ovum (D)</p> Signup and view all the answers

Diploid chromosome number

<p>Chromosomes occur in pairs, so the diploid number is always an even number (2n) (C)</p> Signup and view all the answers

The diploid chromosome number is

<p>The same for every individual within a species (B)</p> Signup and view all the answers

Sex chromosomes

<p>One of the pairs of chromosomes that make up the diploid chromosome number contains the sex chromosome (C)</p> Signup and view all the answers

XX

<p>Female (A)</p> Signup and view all the answers

XY

<p>Male (B)</p> Signup and view all the answers

As a cell divides by ________ the total number of chromosomes in each daughter cell is ______ by half of the numbers that the parent had

<p>Meiosis, reduced (D)</p> Signup and view all the answers

Most of the cells divide by a process called

<p>Mitosis (B)</p> Signup and view all the answers

_______ results in each daughter cell having an identical, full diploid set of chromosomes

<p>Mitosis (A)</p> Signup and view all the answers

When the reproductive cells divide by _________ the chromosomes do not produce duplicate copies of themselves before the cells pull apart

<p>Meiosis (B)</p> Signup and view all the answers

___________ of the total chromosomes, including _____ sex chromosome/s randomly goes to each daughter cell before the cell divides

<p>Half, one (D)</p> Signup and view all the answers

Half of the sperm cells produced have an X chromosome and a Y chromosome

<p>True (A)</p> Signup and view all the answers

Ova are produced in

<p>The developing follicles in the ovaries (B)</p> Signup and view all the answers

Production of ova involves a _______________ events under the influence of two hormones

<p>Complex sequence of cyclical (repeating) events (D)</p> Signup and view all the answers

Production of ova involves a complex sequence of cyclical events under the influence of which hormones

<p>FSH and LH (A)</p> Signup and view all the answers

Rupture of the mature follicle with release of the oocyte (ova)

<p>Ovulation (B)</p> Signup and view all the answers

The oocyte is called a _________ after release into the uterine tube

<p>Mature ovum (C)</p> Signup and view all the answers

Ovulation occurs spontaneously due to rising ____ levels

<p>LH (D)</p> Signup and view all the answers

Example of induced ovulator/s

<p>All of the above (D)</p> Signup and view all the answers

In induced ovulators, breeding must take place _______ to stimulate ovulation

<p>First (B)</p> Signup and view all the answers

Endocrine signal must be sent from _______ to maintain the ___

<p>Ovum to ovary, CL (D)</p> Signup and view all the answers

Designed to get the ovum and spermatozoa together in the right place at the right time

<p>Estrous cycle (C)</p> Signup and view all the answers

Estrous cycle is controlled by the hormone/s

<p>FSH and LH (B)</p> Signup and view all the answers

Breeding takes place during a ___________ within the reproductive cycle when the chance of a successful pregnancy is the highest

<p>Definite period (D)</p> Signup and view all the answers

Detaches easily

<p>Both A and C (D)</p> Signup and view all the answers

Loosely attached and detaches easily

<p>Diffuse (B)</p> Signup and view all the answers

Life support system for the developing embryo/fetus

<p>Placenta (A)</p> Signup and view all the answers

Placenta

<p>Both A and B (D)</p> Signup and view all the answers

Contains blood vessels and the urachus

<p>Umbilical cord (D)</p> Signup and view all the answers

In some places the placenta actually attaches to the uterus (_____)

<p>Exchange of nutrients and waste occurs here (A)</p> Signup and view all the answers

Consists of layers of soft membranes that form two fluid filled sacs

<p>Placenta (C)</p> Signup and view all the answers

Match

<p>The study of the development of the embryo = Embryology The male or female germ cell, sperm or ova = Gamete The stage during which the major organs are forming = Embryo The fertilized ovum = Zygote</p> Signup and view all the answers

Match

<p>Embryo = The stage at which the major organs are forming Fetus = The stage at which formation of the major internal and external structures is complete until the time of parturition Conceptus = The embryo or fetus, the extra embryonic membranes and the placenta Neonate = A newborn animal</p> Signup and view all the answers

Trimesters

<p>1 = Period of the embryo 2 = Fetal development and differentiation 3 = Fetal growth</p> <ul> <li>= -</li> </ul> Signup and view all the answers

Gestation is divided into

<p>Trimesters (B)</p> Signup and view all the answers

Stages of labor

<p>Uterine contractions = Cervical dilation, dam appears uncomfortable; nest building Delivery of the newborn = Combo of strong uterine and abdominal muscle contractions; dam lies down-&gt;starts straining; &quot;water breaks&quot; Delivery of the placenta = Weak contractions</p> <ul> <li>= -</li> </ul> Signup and view all the answers

In multiparous species the second and third stages of parturition intermix with one another

<p>True (A)</p> Signup and view all the answers

When it is time for parturition a series of events lead to the ovary to stop producing ________

<p>Progesterone (A)</p> Signup and view all the answers

When it is time for parturition a series of events lead to the ovary to stop producing progesterone, leading to a massive decline in the damn

<p>True (A)</p> Signup and view all the answers

When it is time for parturition a series of events lead to the ovary to stop producing progesterone, leading to a massive increase in the damn

<p>False (B)</p> Signup and view all the answers

When it is time for parturition adrenal glucorticoids ______ in fetus and __________ in dams estrogen level and release of ______ from uterine wall

<p>increase, stimulate rise, PGF2 (B)</p> Signup and view all the answers

Estrogen and prostaglandins _____ the sensitivity of the myometrium to the ________ released from the dams posterior pituitary gland which causes _____ and ultimately, labor

<p>Increase, oxytocin, uterine contractions (C)</p> Signup and view all the answers

Produces colostrum

<p>Both A and B (D)</p> Signup and view all the answers

Only females produce milk due to hormones secreted

<p>True (A)</p> Signup and view all the answers

When nursing or milking begins, sensory nerve impulses are sent to the brain specifically the _________ and stimulates the _________

<p>Hypothalamus, pituitary gland (A)</p> Signup and view all the answers

Hormones involved in lactation

<p>Prolactin, growth hormone, adrenal cortical hormones (B)</p> Signup and view all the answers

The _____________ and ___________ of mammary glands are the first step in making them able to produce milk

<p>Physical growth, development (A)</p> Signup and view all the answers

Number of mammary glands in the horse

<p>2 (B)</p> Signup and view all the answers

Mammary glands of the sheep and goat

<p>2 (C)</p> Signup and view all the answers

Mammary glands of the swine

<p>14 (B)</p> Signup and view all the answers

Mammary glands of the cow

<p>4 (C)</p> Signup and view all the answers

There is a variety in the number of openings from which milk flows from the nipples or teats

<p>True (A)</p> Signup and view all the answers

There is no variety in the number of openings from which milk flows from the nipples or teats, they are all uniform

<p>False (B)</p> Signup and view all the answers

______ stimulates ______ cells around the alveoli and small ducts of mammary glands to ______, which is what squeezes the milk down in the ducts

<p>Oxytocin, myoepithelial, contract (B)</p> Signup and view all the answers

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