Describe the functions of the urinary system.

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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  1. Describe the functions of the urinary system.

  2. Identify the 4 organs of the urinary system. What is a nephron?

  3. Describe the gross anatomy of the kidneys

  4. Trace the blood flow (listed vessels only) from Abdominal Aorta to Inferior Vena cava.

  5. Describe the structure of the Glomerulus (Renal Corpuscle).

  6. Trace the flow of filtrate through the nephron. Identify which nephron parts are in the cortex and which are in the medulla of kidney.

  7. Describe the anatomy (layers and tissues) and the functions of the ureter, urinary bladder, and the urethra.

  8. Describe the following nephron functions and identify the specific nephron structures where these processes occur.

    1. Filtration –

    2. Reabsorption –

    3. Secretion -

  9. Identify the specific structure in the nephron and the process that occurs for each listed substance:

Process: filtered, not filtered, reabsorbed, secreted.

Substances = water, Na+, K+, H+, Bicarbonate (HCO3-), Cl-, Ca2+, urea, ammonia (NH3 or NH4+), glucose, protein, amino acids, platelets, creatinine, RBC, WBC.

    1. Glomerulus –

    2. Proximal Convoluted tubule –

    3. Nephron loop (Ascending and Descending limb) -

    4. Distal convoluted tubule -

    5. Collecting duct -

  1. For each hormone: Identify the molecule or ion, the process (reabsorb or secrete) and the location(s) in the nephron where these hormones exert their actions.

    1. Aldosterone

    2. ADH

    3. PTH

  2. Trace the flow of urine as it leaves the collecting duct of the nephron until it is released from the body.

  3. Describe the functions of the components of the JG complex:

    1. Juxtaglomerular (JG) cells

    2. Macula densa

  4. Describe GFR and its relationship to Blood pressure.

  5. Describe how GFR (and BP) is regulated by the kidneys

    1. Renal Autoregulation

      1. Myogenic mechanism

      2. Tubuloglomerular feedback mechanism

    2. Hormonal regulation

      1. Increase in BP

      2. Decrease in BP

    3. Sympathetic nervous control

  6. Identify the parts of the nephron where blood pH is regulated. Describe how blood pH is regulated – what ions are reabsorbed or secreted when pH is low or high



TOPIC 10 - REPRODUCTIVE SYSTEMS

  1. Describe the functions of the male reproductive organs and structures:

    1. Scrotum

    2. Testes

      1. Seminiferous tubules

      2. Interstitial (Leydig) cells

      3. Sustentacular Sertoli) cells

    3. Epididymis

    4. Vas (Ductus) deferens

    5. Seminal vesicles

    6. Prostate gland

    7. Ejaculatory duct

    8. Bulbourethral (Cowper’s) gland

    9. Urethra

    10. Penis

  2. Describe the difference between sperm and semen

    1. Trace the pathway sperm travels from where it is created until sperm become semen

    2. Trace the pathway semen travels from where it is created until it exits the body.

  3. Describe the functions of the female reproductive organs and structures:

    1. Ovary

    2. Follicle

      1. Oocytes

      2. Granulosa cells

    3. Fallopian tube

      1. Fimbriae

    4. Uterus

      1. Perimetrium

      2. Myometrium

      3. Endometrium

    5. Cervix

    6. Vagina

    7. Vulva

      1. Mons pubis

      2. Labia majora

      3. Labia minora

      4. Clitoris

    8. Breast

      1. Mammary glands

      2. Mammary ducts



  1. For each hormone, identify the production site, target site for each sex and describe the general actions of the hormone

Production site

Hormone

Male target site

Female target site

Actions

 

GnRh

 

 

 

 

FSH

 

 

 

 

LH

 

 

 

 

LH surge

 

 

 

 

Testosterone

 

 

 

 

Estrogen

 

 

 

 

Progesterone

 

 

 



  1. Compare and Contrast the processes of Spermatogenesis and Oogenesis:

 

Spermatogenesis

Oogenesis

Location

 

 

Starting cell and chromosome number

 

 

When process begins

 

 

Starting cell at Puberty

 

 

Gamete and chromosome number

 

 

Number and type of cells produced

 

 

Unique aspect

 

 

Timeline

 

 







  1. Describe the phase hormone is released and the action of each hormone in the Reproductive (Menstrual) cycle.

    1. FSH

      1. Reproductive phase

      2. Specific action in cycle

    2. LH

      1. Reproductive phase

      2. Specific action in cycle

    3. LH surge

      1. Reproductive phase

      2. Specific action in cycle

    4. Estrogen

      1. Reproductive phase

      2. Specific action in cycle

    5. Progesterone

      1. Reproductive phase

      2. Specific action in cycle

  2. Identify the ovarian hormone that triggers:

    1. LH surge (Positive feedback control)

    2. Decrease FSH and LH secretion (Negative feedback control)

  3. Compare and contrast the different phases of the Reproductive cycle:

REPRODUCTIVE

CYCLE

EVENT

DATES

OVARIAN PHASES

OVARIAN

FOLLICLES/

OOCYTES

UTERINE

PHASES

MENSTRUATION

(Menses)

1 - 5

 

 

 

PREOVULATION

6 - 13

 

 

 

OVULATION

 

14

 

 

 

POSTOVULATION

15 - 28

 

 

 



  1. Define Menopause and describe approximate age of onset and the effects on the body of Menopause









TOPIC 11 - FETAL DEVELOPMENT

  1. For each event or stage below, identify the process that is occurring to lead to next stage, identify location for each stage in female reproductive structures and describe function of specialized structures and what they will develop into

    1. Penetration - event

      1. Description

      2. Location

    2. Fertilization - event

      1. Description

      2. Location

    3. Zygote - stage

      1. Description

      2. Location

      3. Process

    4. Morula - stage

      1. Description

      2. Location

      3. Process

    5. Blastocyst - stage

      1. Description

        1. Trophoblast

        2. Inner cell mass

      2. Location

      3. Process

    6. Implantation – event

      1. Description

      2. Stage that implant

 

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