SMALL ANIMAL_RE/PURPLE Flashcards
WHAT IS THE MOST OBSERVABLE PART OF THE OESTROUS CYCLE IN THE DOG?
PROESTROUS
- THE BLEEDING OCCURS HERE
- MALE DOGS COME AROUND
- BITCH ACCEPTS THE MATE
WHAT FORCES THE LH SURGE IN DOGS?
A. RAISE IN E2
B. DROP IN E2
C. DROP IN PROGESTERONE
D. RAISE IN PROLACTIN
B. DROP IN E2
A RAISE IN E2 MAKES HER REFUSE THE MATE
DROP IN E2 SHE ACCEPTS MATE
WICH OF THE FOLLOWING DOES NOT CONSTITUTE THE BEGINING OF PROESTROUS IN THE BITCH?
A. VULVAL SWELLING
B. SEROSANGUINOUS VAGINAL DISCHARGE
C. MATING
D. VAGINAL SWELLING
C.
MATING IS THE END RESULT
WHAT IS CORNIFICATION?
WHAT HORMONE LEADS TO CORNIFICATION IN THE BITCH?
FORMATION OF A LAYER OF DED CELLS TO CREATE A PYSICAL BARRIER
- OESTROGEN LEADS TO CORNIFICATION
WHAT IS DIAPEDESIS?
PASSAGE OF RBC THROUGH INTACT CAPILLARY WALLS
- E2 RESPONSIBLE
WHAT IS THE REALTIONSHIP BETWEEN E2 AND THE BITCH’S SEXUAL RECEPTIVITY?
DECREASE- SEXUALLY RECEPTIVE
INCREASE- NOT RECEPTIVE
E2 DECREASES AT END OF PROESTROUS
WHICH IS NOT TRUE OF E2 IN BITCH?
A. MAINTAINS ESTROUS CYCLE
B. THICKENS ENDOMETRIUM
C. RELEASES PHEROMONES
D. CAUSES DIAPEDESIS
E. PREDOMINANT HORMONE IN PROESTROUS
ALL ARE CORRECT
WHEN DOES PROLACTIN INCREASE IN BITCH?
DAY 25- 30
- PROGESTERONE DROPS AND PROLACTIN TAKES OVER
- PREGNANCY SPECIFIC TAKE OVER
WHICH IS NOT TRUE OF PROGESTERONE IN BITCH?
A. DECREASES AT THE END OF PROESTROUS
B. PREDOMINANT HORMONE IN METESTROUS
C. DECREASES LH AND FSH
D. HELPS PREDICT OVULATION
E. HELPS PREP FOR PREGNANCY
A.
ACTUALLY INCREASES AT THE END OF PROESTROUS
KARYOLYSIS VS KARYORRHEXIS
KARYOLYSIS- NUCLEAR FADING
KARYORRHEXIS- NUCLEAR FRAGMENTATION
WHAT ARE THE 4 TYPES OF VAGINAL CELLS IN BITCH?
ANUCLEAR
SUPERFICIAL
INTERMEDIATE
PARABASAL
HOW TO INDICATE OESTROUS USING VAGINAL CYTOLOGY IN BITCH?
> 75% CORNIFIED CELLS INDICATES OESTROUS
WHICH IS NOT TRUE OF PROGESTERONE IN BITCH?
A. INCREASES PRIOR TO OVULATION IN DOG
B. INCREASES POST OVULATION IN DOG
C. PEAKS DURING METESTROUS
D. >2ng/mL is a good time for service
B.
STARTS TO INCREASE BEFORE OVULATION OCCURS
OVULATION OCCURS MID ESTROUS
WHEN DOES OVULATION OCCUR IN DOGS?
3-4 DAYS INTO OESTROUS
- MIDESTROUS
HOW LONG AFTER LH SURGE DOES OVULATION OCCUR IN DOGS?
24-48 HOURS AFTER
WHEN IS THE FERTILIZATION PERIOD IN THE BITCH?
APPROXIMATELY 2 DAYS AFTER OVULATION UP TO 5 DAYS AFTER OOCYTE MATURATION (~ 48-60 HRS POST OVULATION)
WHAT ARE THE PREDOMINANT CELLS SEEN DURING THE ANOESTROUS VAGINAL CYTOLOGY?
- PARABASAL CELLS
- SEE A LOT OF DEBRIS TOO
LIST 3 METHODS USED IN VETERINARY PRACTICE TO DETERMINE OPTIMUM MATING TIME
- EXFOLIATE VAGINAL CYTOLOGY
- MEASURE PLASMA PROGESTERONE CONCENTRATION (2ng/mL)
- vaginoscopy
LIST 4 CRITERIORS COMMONLY USED BY DOG BREEDERS TO DETERMINE OPTIMUM BREEDING TIME
- 11-13 DAYS POST PROESTROUS
- DRAMINISKI OVULATION DETECTOR
- MICROSCOPY- LOOKING FOR FERNING IN THE DISCHARGE
- 3 DAYS AFTER ONSET OF VULVULAR SOFTENING/CHANGE IN VAGINAL DISCHARGE
LIST 3 IMPORTANT CHARACTERISTICS OF THE FELINE OESTROUS CYCLE
- SEASONALLY POLYESTROUS
- PHOTOPERIOD DEPENDANT
- INDUCED OVULATORS
HOW CAN THE FELINE OESTROUS CYCLE BE CONTROLLED?
- LIMIT LIGHT EXPOSURE
- CHANGE SECRETION OF MELATONIN?
HOW LONG IS THE INTEROESTROUS PERIOD IN QUEENS?
8- 15 DAYS
T/F IF THE QUEEN ISN’T BRED SHE CAN CYCLE EVERY 3 WEEKS
TRUE
EVERY 2-3 WEEKS
WHAT ANATOMICAL STRUCTURE SECRETES PROGESTERONE UP TO 65 DAYS DURING PREGNANCY?
CORPUS LUTEUM
WHEN DO LACTATING QUEENS RESUME CYCLING?
2-3 WEEKS POST WEANING
DESCRIBE THE 3 FRACTIONS OF EJACULATE OF THE DOG
1ST/PRE SPERM FRACTION- SPERM POOR -05 -2mls - SLIGHTLY CLOUDY - foreplay
2ND/ SPERM RICH FRACTION- SPERM RICH - 0.5- 1ml - MILKY - intromission
3RD/ PROSTATIC FRACTION- SPERM FREE PROSTATIC FLUID - 15-20 mls - CLEAR - the tie (CAN BE USED AS AN EXTENDER)
what is the physiological significance of “the tie” during normal coital behaviour?
the vulvar constrictor muscles squeeze the body of the penis and the bulbus glandis becomes engorged and enables the penis to remain within the vagina for 5mins up to 1 hr. sperm free ejaculate is released to help push sperm towards cervix.
how long is bitch pregnancy?
~ 63 days
58-68 days
WAT ANATOMICAL STRUCTURE IS THE SOLE SITE OF PRODUCTION OF PROGESTERONE IN THE PREGNANT BITCH?
CL
WHAT ENDOCRINE CHANGES OCCUR WHEN THE CL IS LYSED NATURALLY DURING PREGNANCY OF BITCH
- CL LYSIS OCCURS 24-36 HRS PRE-PARTUM
- CAUSES SHARP DECREASE IN PROGESTERONE
- SHARP INCREASE IN PROLACTIN
WHICH HORMONE IS PREGNANCY SPECIFIC IN THE DOG?
RELAXIN
STATE 3 IMPORTANT CHARACTERISTICS OF RELAXIN IN BITCH
- PRODUCED BY PLACENTA
- INCREASES FROM DAY 25
- PEAKS AT DAY 40-50 (4-6ng/ml)
list 5 methods of pregnancy diagnosis in bitches
- palpation- abdominal/manual
- radiographic diagnosis
- ultrasonic diagnosis
- acute phase proteins
- hormonal assays (not reliable)
AT WHAT POINT IS MANUAL PALPATION GENERALLY NOT AN OPTION IN BITCH?
AFTER 5 WEEKS
- PLENTY FOETAL FLUID AND HUGE SIZE OF UTERINE HORNS MAKE IT DIFFICULT- EASY TO CONFUSE WITH PYOMETRA
LIST 3 CONS OF PD USING MANUAL/ABDOMINAL PALPATION IN BITCH
- LITTER SIZE??
- VIABILITY??
- NOT ACCURATE ALONE
DESCRIBE THE FOETAL SWELLINGS OF THE UTERINE HORN FOR MANUAL PALPATION BETWEEN 3-5 WEEKS IN BITCH?
3 WEEKS - 15mm - high in abdomen
4 WEEKS - 25mm - oval
5 WEEKS - 35 mm - oval, soft
LIST 3 PROS AND 1 CON ASSOCIATED WITH THE ULRASONOGRAPHY METHOD OF PD OF BITCH?
PROS:
- ASSES FOETAL VIABILITY
- PREDICT PARTURITION DATE (BY ASSESSING FOETAL SIZE -CROWN TO RUMP)
- IF IT’S NOT PREGNANCY CAN DIAGNOSE DISEASES: PYOMETRA, ENDOMETRITIS, CYSTIC OVARIAN FOLLICLES
CON:
- CAN’T ASSES EXACT NUMBER OF FOETI
WHICH ULTRASOUND MODES/ TECHNIQUES CAN BE USED TO DIAGNOSE PD OF BITCH?
- B-MODE REAL TIME SCANNER CAN IDENTIFY VESICLES FROM DAY 17
- SIMPLE DOPPLER CAN DETECT FOETAL HEARTBEAT FROM DAY 24-28
WHAT IS THE MOST ACCURATE METHOD FOR DETERMINING THE NUMBER AND POSITION OF FOETI DURING LATE PREGNANCY IN THE BITCH?
RADIOGRAPHY
NOT GOOD FOR VIABILITY
WHEN DOES THE FOETAL CALCIFICATION OF THE SKULL, PELVIC BONE AND TEETH OCCUR IN PUPS?
SKULL- 45-49
PELVIC BONE - 53-57
TEETH - 58 -63
WHAT IS THE BEST CLINICAL SIGN OF IMPENDING PARTURITION IN THE BITCH?
MARKED DROP IN RECTAL TEMPERATURE
- BECAUSE YOU HAVE RELEASE OF PROSTAGLANDIN WHICH CAUSES SHARP DROP OF PERIPHERAL PLASMA PROGESTERONE WHICH IS THERMOREGULATORY
DESCRIBE THE STAGES OF PARTURITION IN THE BITCH
1ST - 6-12 HRS
1. CERVICAL RELAXATION AND DILATION
2. INTERMITTENT UTERINE CONTRACTIONS
3. DROP IN RECTAL TEMP (<37.5 oC)
4. NESTING, SHIVERING, LOOKING AT FLANK
2ND - 3-12 HRS
1. STRONG UTERINE CONTRACTIONS
2. NORMAL RECTAL TEMP
3. ALLANTOIS BURST
4. ABDOMINAL STRAINING
5. PUPS PASSED WITHING 30MINS OF STRAINING
3RD - 5-15 MINS
1. EXPULSION OF PLACENTA
2. PASSED WITH OR AFTER SUBSEQUENT BIRTHS
3. BITCH CAN EAT IT
4. DONT LET HER EAT MORE THAN 2
HOW LONG POST PARTUM IS LOCHIA SEEN?
UP TO 3 WEEKS IS NORMAL
HOW LONG DOES UTERINE INVOLUTION TAKE IN THE BITCH AND THE QUEEN?
BITCH- 3-4 MONTHS
QUEEN - 3-4 WEEKS
HOW CAN HUMANS MANUALLY STIMULATE UTERINE CONTRACTIONS IN THE BITCH?
FEATHERING
- TICKLING ROOF OF VAGINA WITH GLOVED FINGERS