old anat 1

In morula state...

A) We can differentiate 3 layers: ectoderm, mesoderm and endoderm

B) Are produced lateral plates, splanchnopleura and somatopleura

C) Is formed the blastocele and notochord

D) Embryo is surrounding the ZP (Zona Pellucida)

D

Species? (Note marked structure in the picture, nuchal ligament)

A) Carnivore

B) Ruminant

C) Equine

D) Pig

A

Which of the following anatomic structures will ossify when growth stops?

A) Articular cartilage

B) Epiphyseal cartilage

C) Red bone marrow

D) Spongy bone

B

Which of the following parts of a vertebrae is cranial and which is caudal ?

A) Vertebral fossa: caudal, Vertebral head: cranial

B) Vertebral head: cranial, vertebral fossa: caudal

C) Vertebral head: cranial, vertebral foramen: caudal

D) Vertebral foramen: cranial, vertebral head: caudal

B

Which is the red arrow pointing at ?

A) Neural tube

B) Lateral plates

C) Notochord

D) Somites

A

Identify the structure in the picture regarding germinal period. Ans:C

A) Zygote

B) Gastrula

C) Morula

D) Blastocyte

D

Herniated disks are mainly produced in...

A) Between T2 and T13

B) At last lumbar vertebra

C) Between atlas and axis

D) Between T11 & L2

D

The following picture shows a transverse cross section of the ovary in a cow containing a

spherical yellowish structure, what is it called and what is its function?

A) Corpus luteum, produces progesterone during pregnancy

B) Corpus luteum, produces estrogens

C) Corpus luteum, degenerates follicles

D) Corpus rubrum, produces estrogens

A

Which branch or branches does the aortic arch give rise to in a carnivore?

A) Brachiocephalic trunk

B) Brachiocephalic trunk and right subclavian artery

C) Brachiocephalic trunk and left subclavian artery

D) Left subclavian artery and common carotid artery

C

Identify the follicular stage the following picture is showing and the structure the arrow is

pointing at.

A) Graafian follicle. Granulosa cells

B) Secondary follicle. Corona radiata

C) T ertiary follicle. Cumulus Oophorus

D) Secondary follicle. Theca interna

A

Splenius muscle...

A) Is a powerful extensor of the head and neck

B) Is flexor muscle of the neck

C) Is a flexor muscle of the head and neck

D) Is a Powerful extensor muscle of the neck

A

Main flexor muscle of the neck...

A) Cranial muscle of the neck

B) Longissimus capital muscle

C) Long muscle of the neck

D) Multifidus muscle

C

During the growth phase of the spermatogenesis process...

A) Spermatogonia transform into primary spermatocytes

B) Structural changes in spermatids take place

C) The second meiotic division is completed giving rise to 4 haploid spermatids

D) Spermatogonia type 4 grow and develop mature spermatozoa

A

Which structure is being pointed at with the red arrow?

A) Primitive streak

B) Hipoblast

C) Vitelline vesicle

D) Yolk

A

Which is FALSE related to spermatogenesis

(A) Is giving secondary spermatocyte in growth phase

(B) The result are 4 spermatozoa

(C) During the maturation phase, a primary spermatocyte undergoes meiosis II and forms 2

secondary spermatocytes.

(D) Sperm cells are liberated into the lumen of the seminiferous tubules.

A

Identify species that this placenta belongs to.

A) Carnivore

B) Pig

C) Ruminant

D) Equine

C

Where does maturation of sperm cells take place?

A) Lumen of seminiferous tubules

B) Deferent duct

C) Efferent ductules

D) The epididymis

D

Which of the following muscles is inserted medially in the pubis (hipbone)?

A) Straight abdominal muscle

B) Semispinal muscle of the thorax

C) Thyroid muscle

D) Splenius m.

A

Which is the position from deep to superficial, of these muscles?

A) Splenius, Brachiocephalic, Caudal oblique muscle of the head

B) Caudal oblique muscle of the head, splenius, brachiocephalic

C) Brachiocephalic, splenius, caudal oblique muscle of the head

D) Caudal oblique muscle of the head, brachiocephalic, splenius

B

Carnivores have placenta type...

A) Zonary and endotheliochorial

B) Cotyledonary and diffuse

C) Cotyledonary

D) Diffuse complete and endotheliochorial

A

A secondary spermatocyte after complete meiosis II is giving...

A) 4 long spermatogonium

B) 4 round spermatids

C) 2 long spermatids

D) 2 spermatozoa

B

First abdominal aorta branch is...

A) Cranial mesenteric artery

B) Right renal artery

C) Celiac artery

D) Cranial abdominal artery

C

When fertilization takes place, the secondary oocyte...

(A) Completes the second meiotic division

(B) Degenerates

(C) Completes the first meiotic division

(D) Divides

A

Intercapital ligament

(A) Cross ventrally the vertebral bodies, joining heads of the ribs

(B) Cross dorsally the vertebral bodies, joining heads of the ribs

(C) Runs from one vertebral body to the next

(D) Runs laterally from vertebral fossa and to the vertebral head of the next vertebral

B

Which is CORRECT regarding fertilization in mammals?

A) Oocyte is fertilized outside the uterus

B) Only 1 spermatozoa gets into 1 oocyte II thanks to the fertilization membrane

C) Any changes in spermatozoa are required

D) Is produced in infundibulum

B

Choose the CORRECT answer regarding ejaculate characteristics.

A) Semen is formed by primary spermatocytes and seminal plasma

B) Big volumes of ejaculae contain low concentration of sperm cells

C) Semen is formed by spermatogonia and seminal plasma

D) Big volumes of ejaculate contain high concentration of sperm cells

B

Inguinal canal

(A) In females genitofemoral nerve

(B) In males round ligament of the uterus

(C) In males is for spermatic cord

(D) In males prudential vessels

C

What kind of egg is the following picture showing and to what species can it belong

to?

Reservados todos los derechos. No se permite la explotación económica ni la transformación de esta obra. Queda permitida la impresión en su totalidad.

A) Megalecithal egg

B) T elolecithal egg. Birds

C) Oligolecithal egg. invertebraes

D) Alecithal egg. Mammals

D

The avian egg...

A) C) Has the nutritional structure, the blastoderm

B) Is telolecithal

Is formed by yolk located in the periphery and air chamber located in the center

D) Is alecithal

B

Which of the following blastodermic layers is from the central nervous system?

A) Sclerotome

B) Mesoderm

C) Ectoderm

D) Endoderm

C

Identify the spermatogenesis phase the following drawing is showing and the responsible

structure for the formation of the flagellum.

A) Spermiogenesis. Golgi apparatus

B) Spermiation. Golgi apparatus

C) Spermiation. Centrioles

D) Spermiogenesis. Centrioles

D

During ovulation is produced... Ans:C

A) Breaking of mature follicle produces oogonium

B) Breaking of Graafian and primary oocyte releasing

C) Breaking of Graafian follicle and secondary oocyte releasing surrounded by corona radiata

D) Breaking of mature follicle produces fertilized egg

C

What is the arrow pointing at?

A) Intervertebral canal

B) Intervertebral foramen

C) Lateral vertebral foramen

D) Intervertebral disk

D

Which of the following structures is NOT related to trachea at the cervical region?

A) Vagosympathetic trunk

B) Common carotid artery

C) Internal jugular vein

D) Brachiocephalic trunk

D

Sternohyoid muscle...

A) Is a thin muscle going from sternum to lateral surface of the head

B) Is innervated by dorsal branches of cervical spinal nerves

C) Participates is swallowing

D) Is located lateral to sternothyroid muscle

C

A flexor muscle of the neck.

A) Complexus muscle

B) Long muscle of the neck

C) Splenius muscle

D) Longissimus cervical muscle

B

Caudal oblique muscle of the head.

A) Goes from the axis to atlas

B) Goes from the atlas to axis

D) Goes from the skull to axis

E) Goes from the skull to atlas

A

The acrosome of the spermatozoa is formed in...

A) In the spermatogonia

B) Primary spermatocytes

C) Secondary spermatocytes

D) Spermatids

D

How many spermatozoa are produced from one primary spermatocyte?

A) 1

B) 2

C) 4

D) 8

C

What species produces a higher ejaculate volume?

A) Bovine

B) Equine

C) Suidae (pigs)

D) Small ruminant

C

How many oocytes can a primary oocyte ovulate?

A) 1

B) 2

C) 4

D) 8

A

Regarding ovulation. Choose the CORRECT answer.

A) If fecundation takes place the corpus luteum degenerates

B) Ovulation is the rupture of the follicle wall and the release of the secondary oocyte

surrounded by the cells of the corona radiata

C) Corpus albicans has a red color

D) Follicular atresia is the formation of follicles

B

Which species does this ovary belong to ?

A) Carnivore

B) Equine

C) Ruminant

D) Pig

B

Which species do these ovaries belong to ?

A) Carnivore

B) Equine

C) Ruminant

D) Pig

C

Which species does this ovary belong to ?

A) Small ruminant

B) Equine

C) Ruminant

D) Pig

D

Which species does this ovary belong to?

A) Equine

B) Ruminant

C) Small ruminant

D) Pig

C

What structure does the picture indicate ?

A) Neural tube

B) Lateral plates

C) Notochord

D) Somites

B

Which of the following species has an epitheliochorial, complete diffuse and adeciduate

placenta?

A) Primates

B) Equine

C) Ruminants

D) Carnivore

B

Which of the following species has an endotheliochorial, zonary and deciduate placenta?

A) Primates

B) Equine

C) Ruminants

D) Carnivore

D

Which of the following species has an epitheliochorial/syndesmochorial, cotyledonary and

adeciduate placenta?

A) Pigs

B) Equine

C) Ruminants

D) Carnivore

C

Which of the following species has an epitheliochorial, incomplete diffuse and adecudate

placenta?

A) Pigs

B) Equine

C) Ruminants

D) Carnivore

A

Which of the following embryonic annexes is specially important to avoid desiccation?

A) Amnios

B) Allantois

C) Vitelline vesicle

D) Chorion

A

What is the placentome formed by and in which species can be found?

A) Caruncle, in carnivores

B) Cotyledon, in ruminants

C) Cotyledon+Caruncle, in ruminant

D) Cotyledon+Caruncle, in carnivore

C

Which of the following structures do we not find in a synovial joint?

A) Meniscus

B) Articular fluid

C) Articular disc

D) Intracapsular ligaments

B

Regarding long ligaments of the spine. Choose the corset answer.

A) Interspinous ligaments join together spinous processes

B) The nuchal ligament in equine extends from the spinous process of the axis to the withers

height of the animal

C) The intertransverse ligaments join together transverse processes

D) The supraspinous ligament extends from from the wither height of the animal to the sacrum

D

Which of the following muscles in an extensor muscles of the spine Ans:D

A) Semispinal muscle of the head

B) Longissimus muscle

C) Long muscle of the neck

D) A & B are correct

D

What structure is the arrow pointing at ?

A) Superficial cervical lymph node

B) Superficial inguinal lymph node

C) Deep cervical lymph node

D) Deep inguinal lymph node

A

Which species does this nuchal ligament belong to?

A) Carnivore

B) Equine

C) Pig

D) Ruminant

D

Which species does this nuchal ligament belong to?

Reservados todos los derechos. No se permite la explotación económica ni la transformación de esta obra. Queda permitida la impresión en su totalidad.

A) Ruminant

B) Carnivore

C) Equine

D) Pig

C

Follicular atresia

A) Produces regression of follicle and happens any time during follicle development

B) It is the breakdown of the ovarian follicles

C) Will ovulate throughout their lives

D) Surrounded by ZP & corona radiata

B

The acrosome formation happens in:

A) Primary spermatozoa

B) Spermatids

C) Secondary spermatids

D) Spermatogonium

B

Which of the following organs or tissues comes from the ectoderm?

A) Dermis

B) Vertebrae

C) Cerebellum

D) Stomach

C

Which of the following species has epitheliochorial, complete diffuse and adeciduate

placenta?

A) Primates

B) Equines

C) Ruminants

D) Carnivores

B

Which of the following structures do we NOT find in a synovial joint?

A) Meniscus

B) Collateral ligaments

C) Articular disk

D) Intracapsular ligaments

B

What kind of joint do we find in between vertebral bodies?

A) Synovial joint

B) Symphysis

C) Synchondroses

D) Suture

B

Which muscle is the following picture showing?

A) Longissimus m.

B) Iliocostal m.

C) Spinal and semispinal m. of the thorax

D) Between T4-T8

B

Which of the following muscles contains the superficial inguinal ring?

A) Transverse abdominal m.

B) Straight abdominal m.

C) Internal abdominal oblique m.

D) External abdominal oblique m.

D

Which of the following anatomic structures can I use to access the abdominal cavity during

surgery?

A) Inguinal ligament

B) Inguinal canal

C) Alba line

D) Rectus sheath

C

Indicate what the arrow is pointing at...

(A) Biceps femoris

(B) Middle gluteal muscle

(C) Adductor

(D) Tensor muscle of fascia lata

C

What is the arrow pointing at ?

(A) Superficial gluteal muscle

(B) Adductor muscle

(C) Deep gluteal muscle

(D) T ensor muscle of fascia lata

A

What is the arrow pointing at ?

(A) T ensor muscle of hindlimb fascia

(B) Long digital extensor

(C) Tibial cranial

(D) Sartorius

C

What is the arrow pointing at ?

(A) Adductor

(B) Sartorius

(C) Semimembranosus

(D) T ensor muscle of fascia lata

B

What is the arrow pointing at ?

(A) Biceps femoris

(B) Semimembranosus

(C) Tensor muscle of fascia lata

(D) Sartorius

A