exam 3: Male repro Flashcards
1
Q
Male gonad (testicle) produce ________ and ___________
A
spermatozoids & hormones
2
Q
Identify 1-3
A
1.Tunica albuginea
- Testicular parenchyma-Seminiferous tubules
3.Epididymis
3
Q
identify 1 and 2
A
- Rete testis
- Efferent ductules
4
Q
List the parts of the epididymis
A
head, body, tail
5
Q
what is the position of the head of the epididymus
A
Positioned craniodorsally
6
Q
identify
A
- tail of epididymus
- body of epididymus
- head of epididymus
7
Q
identify 1 and 2
A
- parietal vaginal tunic
- cremaster m.
8
Q
identify 1 and 2
A
- ductus deferens
- head of epididymus
9
Q
Scrotal position of a dog
A
Inguinal position
10
Q
Scrotal covering of a dog
A
sparse hair
11
Q
checking on answer!!!!!!!!
How many layers are there of the Scrotum
A
– Epidermis
– Dermis
-Tunica dartos
-External spermatic fascia
-Internal spermatic fascia
-Parietal vaginal tunic
12
Q
If I were to put a pin the the scrotum and went to the 4th layer.
what layer am I in
A
Internal spermatic fascia
13
Q
NEED TO FIX
If I were to put a pin the the scrotum and went to the 6th layer.
what layer am I in
A
Parietal vaginal tunic
14
Q
what is the pink/grey layer representing
A
skin and tunica dartos
15
Q
what are the layers of the Vaginal tunics
A
Parietal vaginal tunic
Visceral vaginal tunic
Vaginal cavity
16
Q
what layer of vaginal tunic is in green
A
Visceral vaginal tunic
17
Q
what layer of vaginal tunic is in red
A
Parietal vaginal tunic
18
Q
identify
A
- cremaster m.
- External & internal abd. Oblique mm
3.Vaginal ring
19
Q
identify
A
1.Parietal peritoneum
2.Deep inguinal ring
20
Q
identify
A
1.Testicular a., v., l, & n
2.Vaginal process
21
Q
identify
A
1.Ductus deferents
2.Superficial inguinal ring
22
Q
identify
A
- Mesorchium
- Mesofuniculum
- Mesoductus deferens
23
Q
identify
A
Testicular vessels
24
Q
Cremaster muscle Origin:
A
caudal free border of the internal abdominal oblique m.
25
Cremaster muscle Insert:
spermatic fascia & parietal vaginal tunic
26
Cremaster muscle Action
pull the testis closer to the body in response to a cremasteric reflex
27
Cremaster muscle is innervated by which nerve
genitofemoral n. (L3-L4)
28
Spermatic Cord Components (7)
* Testicular a.
* Testicular v. & pampiniform plexus
* Testicular n.
* Testicular lymphatics
* Ductus deferens
* Deferent a. and v.
* Internal cremaster m.
29
Internal cremaster m
is it smooth or skeletal muscle
smooth muscle
30
identify
Testicular v. & pampiniform plexus
31
be able to label basic anatomy
16. ductus deferns
32
Accessory sex glands in the male dog (2)
*Prostate
*Ampullary glands
33
Accessory sex glands in the male dog Function
Adds volume to __________ to provide a vehicle for sperm
ejaculate
34
Accessory sex glands in the male dog function:
Provides a source of energy for _________
sperm
35
Accessory sex glands in the male dog function:
Acts as a ______ for sperm by neutralizing the Ph in urine and the ____ produced by sperm
buffer
CO2
36
Accessory sex glands in the male dog function:
Production of prostaglandins that cause _____________
smooth muscle contraction of female reproductive tract
37
Identify A and B
A:Deferent duct
B: Ampulla
38
Prostate
normal or abnormal
A: Normal
B: Abdormal
39
what are the parts of the male canine urethra
*Pelvic part
*Penile part (spongy)
40
Located on dorsal surface of prostatic urethra
Colliculus seminalis
41
Deferent ducts open on each side of the ____________
colliculus seminalis
42
Colliculus seminalis is the continuation of the _______________
urethral crest
43
Identify the regions of the canine penis
1. Glans penis
2. Body
3.Root
44
Erectile tissue of the penis is Dense __________ tissue with many __________fibers and sinuses
collagenous
elastic
45
identify #10
*Corpus cavernosum penis
46
identify 11
*Corpus spongiosum penis
47
identify 14
Corpus spongiosum glandis of the bulbus glandis
48
identify 15
Corpus spongiosum glandis of the pars longa glandis
49
identify #6
Crura (right and left)
50
identify #7
Bulb of the penis (urethral bulb)
51
identify #8
Urethra
52
what is the urethra surrounded by in the root of the penis
bulb of the penis
corpus spongiosum
53
Expansion of corpus spongiosum penis, surrounded by bulbospongiosus
m
Bulb of the penis
54
what is the Crura composed of
* Corpus cavernosum penis
* Tunica albuguinea
55
Crura is surrounded by
ischiocavernosus m.
56
Erectile tissues of the penis
Corpus cavernosum penis
Corpus spongiosum penis
Corpus spongiosum glandis of the bulbus glandis
Corpus spongiosum glandis of the pars longa glandis
57
Root of the penis (dog) is comprised of
Crura
Bulb of the penis
Urethra
58
Muscles associated with the canine penis (3)
Bulbospongiosus m.
Ischiocavernosus m.
Retractor penis m.
59
what muscle is this?
Around the bulb of the penis
Bulbospongiosus m.
60
what muscle is this?
From ischiatic tuberosities to the crura
(right & left )of the penis
Ischiocavernosus m.
61
what muscle is this?
From the external annal sphincter to the gland, caudal and ventral position
Retractor penis m.
62
what muscles correspond with 1-3
1.Retractor penis m.
2. Ischiocavernosus m.
3. Bulbospongiosus m.
63
Corpus cavernosum surrounded by ____________
tunica albuginea
64
the pelvic portion is surrounded by the urethralis muscle. The penile portion is
surrounded by the corpus spongiosum
Urethra
65
identify 10
Corpus cavernosum
66
identify 5
Urethra
67
identify 11
identify 9
Corpus spongiosum (11)
bulb of the penis (9)
68
identify 13
Proximal part of os penis
69
identify
Body of the penis
70
identify 3
Bulbus glandis
71
identify 2
Pars longa glandis (2)
72
identify 4
Os penis (4)
Around the penile urethra
73
identify 8
Urethra (8)
Surrounded by the corpus spongiosum and the os penis
74
identify 7
Corpus spongiosum penis
75
in the root form the bulbus of the penis and surround the penile urethra all the way toward the external urethral orifice
Corpus spongiosum penis
76
identify 1
Glans penis
77
Os penis (dog) adds rigidity for
intromission
78
Deforms apex of the penis in the vagina
Os penis (dog)
79
Os penis (dog):
Urethra passes through the _______________ on ventral surface
urethral groove
80
81
what are the layers of preputium
– External lamina (haired skin)
– Internal lamina
– Penile lamina
-Preputial fornix (fundus)
82
identify
glans
83
identify 1 and 2
1. preputial ostium
2. preputial fundus
84
identify
retractor penis mm.
85
identify 1 and 2
1. Ichiocavernosus mm.
2. Bulbospongiosus m.
86
Blood supply to the penis ( 6 main arteries)
1. Ventral perineal a.
2. Internal pudendal a.
3. Artery of the penis
4. .Dorsal a. of the penis
5.Deep a. of the penis
6. Artery of the bulb
87
identify 1-3
1. Corpus cavernosum
2. Corpus spongiosum
3.Bulbus glandis
88
idnetify 1-3
1.Dorsal a. of the penis (and Vein)
2. Bulbus glandis
3. Superficial veins of glans
89
during a Non-erection:
Blood flow to the penis bypasses the ____________of the erectile tissue
vascular spaces
90
Vascular spaces of penile erectile tissue contain (small or large) amount of blood
only a small amount of blood
91
during an Erection blood is directed into the _______________
helical arteries of the erectile tissue
92
Results from filling of cavernous bodies
with blood
erection
93
during an erection
Stimulation of the pelvic nerve causes
relaxation of smooth muscles of the
arteries of the penis allowing an
_________________
increase in blood flow to the penis
94
during an erection, what happens to the penis
enlarges and becomes turgid
95
Feline penis:
Apex is directed ______________-
caudoventrally
96
Feline penis does or does not contain os penis
does contain
97
Feline penis:
is the glans small or large
small
98
what is unique about the feline penis
Keratinized spines on distal end of penis
99
Accessory sex glands in the male cat (2)
* Prostate
* Bulbourethral gland
100
Scrotal position of a cat
Cat – perineal position
101
Scrotal covering of a cat
Scrotum of cat is covered with hair
102
Erection
sympathetic or parasympathetic
Parasympathetic function
103
Ejaculation is the secretion of _____________
accessory sex glands
104
Ejaculation
sympathetic or parasympathetic?
Sympathetic function
105
during ejaculation what contracts causing an expulsion of semen?
what kind of function is this?
Bulbospongiosus muscle contracts
* Somatic function
106
what compresses dorsal veins of the penis to maintain an erection
Preputial orifice (male)
Ischial arch (male)
107
what Restricts venous return in the male to maintain erection
Ischiourethralis m. (male)
Penis twists on long axis during
dismount (male)
108
what Inhibits venous return to maintain erection
Constrictor vulvae and vestibuli mm.
(female)
109
Maintenance of erection requires what stimulation
***Neurogenic (male)****
– Parasympathetic stimulation,
retractor penis muscle relaxed
110
why is it important for the testes to drop (out of the abdomen)
Sperm cells mature at a cooler temperature
testes could turn into cancer if inside abdomen at hotter temperature
111
what constricts and pulls testicles through the inguinal canal into scrotum proper
gubernaculumn
112
the pelvic portion of the urethra is surrounded by the
urethralis m.
113
The penile portion of the urethra is
surrounded by
corpus spongiosum
114
the body of the penis is covered by urtheralis muscle and ____________
corpus spongiosum
115
the glans of the penis is surrounded by what 2 things
os penis
corpus spongiosum
116
where does the spermatic cord begin
at the vaginal ring
117
the external and internal spermatic fascia is derived from the ___________________
transversalis fascia
118
what ligament do you specifically cut during a neuter
ligament of the tail of the epidiymis
119
if it is cold outside/ exercising what does the cremaster do
contracts to pull testicles closer to the body
120
if it is hot outside what does the cremaster muscle do
relax, allowing the testicles to cool off
121
The keratinized spines on the end of the feline penis causes what to happen in females
ovulation
122
what is happening at the colliculus seminali
prostatic fluid is getting added to semen
123
what does the rete testis collect sperm from
seminiferous tubules
124
what do the seminiferous tubules do
produce spermatzoids
125
when do the decent of the testes occur
right at birth/shortly after birth
126
when testicles do not descend or are stuck in the inguinal canal this is called
cryptorchid
127
route of spematazoa
once mature:
exit through efferent ductules and are stored in the epididymis then exits through the tail into the ductus deferns to go to the penis
128
what is a left over piece of the gubernaculum
proper ligament of the tail of the epididymis
129
the vein, artery and nerve of the testicle are protected by what meso-
mesorchium
130
what do we ligate during a neuter
spermatic cord
131
what are the 4 functions of the accessory sex glands
1. Adds volume to ejaculate to provide a vehicle for
sperm
2. Provides a source of energy for sperm
3. Acts as a buffer for sperm by neutralizing the Ph in
urine and the CO2 produced by sperm
4. Production of prostaglandins that cause smooth
muscle contraction of female reproductive tract
132
where in the ductus deferns does semen exit
orifices of deferent ducts
133
what kind of response causes ejaculation and erection
autonomic nervous system
inflow of blood occurs, but venal drainage is slowed=engorged
134
what part of the penis has a lot of nerves/very sensitive
glans penis
