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Clinical Anatomy II > Pelvis > Flashcards

Pelvis Flashcards

(48 cards)

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1
Q

Name the bony elements of the pelvic girdle

A

Innominate
Sacrum
Coccyx

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2
Q

Name the bony elements of the innominate

A

Ilium
Pubis
Ischium

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3
Q

Name the structures that form the boundaries of the pelvic inlet (brim)

A

Sacral promontory
Arcuate line
Pectineal line
Pubic symphysis
*divides pelvis into greater/fale and lesser/true

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4
Q

Name the structures that form the boundaries of the pelvic outlet

A

Coccyx
Sacrotuberous ligament
Sacrospinous ligament
Ischial tuberosities
Pubic arch

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5
Q

Describe the divisions of the pelvis

A

False/greater pelvis
*outside of the pelvic inlet
*includes ilium
True/lesser pelvis
*within the pelvic inlet
*contains pelvic cavity & pelvic viscera

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6
Q

Name the pelvic joints

A

Lumbosacral - symphysis
Sacroiliac joint - plane
Pubic symphysis - symphysis

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7
Q

Name the ligaments associated with the lumbosacral joint

A

Iliolumbar ligament

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8
Q

Name the ligaments associated with the sacroiliac joint

A

Anterior (vental) sacroiliac ligaments (crosses)
Dorsal sacroiliac ligament (crosses)
Sacrospinous ligament (supports)
Sacrotuberous ligament (supports)

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9
Q

Name the ligaments associated with the pubic symphysis

A

Superior pubic ligament
Arcuate pubic ligament

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10
Q

List the ways the male and female pelvis differ from one another

A

Male:
*subpubic angle: 70
*heart shaped inlet
*narrow outlet
*narrow cavity
*narrow convex sacrum
Female:
*subpubic angle: 100
*oval-shaped inlet
*roomy outlet
*roomy cavity
*wide, flat sacrum

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11
Q

Identify the pelvic viscera in a male

A

Terminal parts of digestive and urinary systems

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12
Q

Describe the basic structure of the rectum

A

Smooth walls
5in long
venous drainage: portal system
arterial supply: inferior mesenteric artery, internal iliac artery

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13
Q

Describe the basic structure of the urinary bladder

A

Posterior to pubic symphysis
Median umbilical ligament superiorly
Apex
Body
Pubovesicular ligament anteriorly

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14
Q

Describe the structure of ductus (vas) deferens

A

Tube that conveys sperm to ejaculatory duct

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15
Q

Describe the course of the ductus (vas) deferens

A
  1. Enters the superficial inguinal ring through the spermatic cord
  2. Passes through the deep inguinal ring
  3. Posterior to the bladder
  4. Superior-anterior to ureters
  5. Superior to the prostate
  6. Meets with seminal glands to form the ejaculatory ducts
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16
Q

Describe the seminal glands

A

*contributes 85% of ejaculate
*coagulating proteins, fructose, prostaglandins, and other specific proteins

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17
Q

Describe the ejaculatory ducts

A

convergence of vas deferens and seminal glands within the prostate

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18
Q

Describe the location of the prostate

A

Inferior to the bladder
Surrounds prostatic urethra
*contributes alkaline fluid

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19
Q

Describe the location of the bulbourethral glands

A

Inferior to the prostate within the deep transverse perineal muscles
*secretions are lubricating
*secretes into the spongy part of the urethra

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20
Q

Name the 4 parts of the male urethra

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A
  1. Preprostatic
  2. Prostatic
  3. Membranous
  4. Spongy
21
Q

Describe the basic structure of the ovary

Study These Flashcards
A

*dense fibrous tissue
*ova produced here and discharged from follicles
*suspensory ligaments provide passageway for ovarian vessels

22
Q

Describe the basic structure of the uterine tubes

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A

*fimbriae attached to infundibulum
*ampula
*isthmus
*uterine part

23
Q

Describe the basic structure of the uterus

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A

*thick walled muscular organ
*involved in fetal development and delivery
*fundus
*body
*cervix
*broad ligament

24
Q

Describe the basic structure of the vagina

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A

*canal for menstrual fluid
*inferior part of birth canal
*sexual intercourse
*cervical canal
*vaginal fornix
*vaginal canal
*vaginal orifice
*vaginal vestibule (labia minora)
*uterine, vaginal, and internal pudendal vessels

25
Describe the basic structure of the broad ligament
*mesosalpinx (uterine tube) *mesovarium (ovary) *mesometrium (uterus)
26
the pudendal nerve passes _______-_______ (_______) to the sacrospinous ligament.
posterior-lateral (superficial)
27
The obturator nerve passes _______ to the superior pubic ramus
Inferior
28
Describe the location of the perineum
Inferior to pelvic floor muscles/fascia
29
Describe the general function of the perineum
Support openings from the pelvic floor
30
Name the boundaries of the perineum
Pubic symphysis Ischiopubic ramus Ischial tuberosities Sacrotuberous ligament Sacrum/coccyx
31
Summarize the perineum and its muscles using a drawing
32
Name the contents of the male perineum
Penis Scrotum Anus
33
Name the contents of the female perineum
Vulva *mons pubis *labia minora *labia majora *clitoris *vaginal opening *urethral opening Anus
34
Describe the general nerve supply of the ilioinguinal and genitofemoral nerves
*innervates: mons pubis & anteromedial thigh
35
Describe the general nerve supply of the posterior femoral cutaneous nerve
Gluteal branches *innervate: sensory & postganglionic sympathetic innervation of skin overlying part of the gluteus maximus Perineal branches innervate: sensory & postganglionic sympathetic innervation of skin overlying posterior aspect of the perineum
36
Describe the general nerve supply of the pudendal nerve
Inferior rectal n. *innervates: skin overlying the anus, sensory, postganglionic sympathetic & motor innervation of the external anal sphincter Perineal n. *Muscular branches - Sensory, postganglionic sympathetic innervation of corpus spongiosum or bulb of vestibule; sensory & postganglionic sympathetic innervation of the spongy urethra; sensory, postganglionic sympathetic & motor innervation of perineal muscles *posterior labial or scrotal branches - sensory & postganglionic sympathetic innervation of the skin overlying the labia majora & minora, lower vagina & urethra or scrotum Dorsal nerve of the clitoris or penis *sensory & postganglionic sympathetic innervation of the skin overlying penis or clitoris ;sensory, postganglionic sympathetic innervation of the corpus cavernosum
37
Describe the location of the male erectile tissues
Corpus spongiosum - surrounds urethra & continues to be glans of the penis Corpus cavernosum - paired dorsal side of penis
38
Describe the location of the female erectile tissues
Crus of the clitoris - along inferior pubic ramus Glans of the clitorus - posterior to mons pubis Vestibular bulb of the clitorus - lateral to vaginal orifice
39
Describe the ischioanal fossa
Fat pads and loose connective tissue Found in anal triangle Supports the rectum
40
Describe the ischioanal fossa's contents
Pudendal canal *internal pudendal artery & vein *pudendal nerve Outside canal *inferior rectal artery *inferior rectal nerve
41
List the structures comprising the male external genetalia
Distal urethra Penis Scrotum Urogenital triangle
42
List the structures comprising the female external genitalia
Vulva *mons pubis *labia minora *labia majora *clitoris *vaginal opening *urethral opening
43
Describe the internal features of the scrotum
External spermatic fascia Cremasteric fascia and cremaster muscle Internal spermatic fascia Tunica dartos and dartos muscle Tunica vaginalis, visceral layer & parietal layer Testis
44
Draw the arterial supply of the perineum
45
Describe the course and branches of the pudendal nerve
Descends vertically through sciatic foramina (around pelvic floor) Branches: *Inferior rectal n. - to the rectum *perineal n. - corpus spongiosum, spongy urethra, perineal muscles, labia majora & minora, lower vagina, urethra, scrotum *dorsal nerve of the clitorus or penis - penis or clitorus, corpus cavernosum
46
Describe the functions of the pudendal nerve
Micturition Defecation Parturition Erection Ejaculation
47
Detail the components of the pudendal nerve responsible for male erection & ejaculation
Erection *smooth muscles of corpora cavernosa relax *parasympathetic S2-4 *cavernosus nn. extensions of prostatic plexus Ejaculation *contraction of internal genitalia organs *sympathetic L1-2 *lumbar splanchnics to hypogastric plexus
48
Explain the characteristics of the anal canal
External anal sphincter Levator ani Internal anal sphincter Hemorrhoidal plexus Anal columns Anal sinuses Anal valves Subcutaneous venous plexus Perianal skin Anus

Clinical Anatomy II (14 decks)

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