Rat Lab - prelab, worksheet, review, chart

Rat Lab - prelab, worksheet, review, chart -...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Vertebrate
Anatomy
Pre‐lab.

Due
at
the
start
of
lab.

(Pages
159­176)
 
 Name

 
 
 
 
 

GSI
&
Sect
#

 
 
 
 
 
Station
#
 
 
 AT
THE
END
OF
EACH
LAB
IS
A
REVIEW
AND
A
CHART
THAT
YOU
SHOULD
FILL
OUT.
 
 1.

Define
the
following
terms.
 
 
 Dorsal:

 
 
 
 Bilateral
symmetry:

 
 
 
 Oral
surface:

 
 
 2.

In
the
following
diagram
of
a
rat
label
the
following
planes:
sagital,
frontal
and
transverse.

Also
indicate
the
 following
axes:
dorsiventral,
transverse
and
longitudinal
(see
lab
manual,
p.155‐160).
 
 
 
 3.

For
a
rat,
outline
the
passage
of
food
from
the
mouth
out
to
the
anus.
 
 
 
 
 
 
 4.

Does
a
rat
have
a
closed
or
open
circulatory
system?

Explain
your
answer.
 
 
 
 
 Pre-lab continued on the other side. A51
–
Fall
2009
 5.

Trace
the
movement
of
an
oxygen
molecule
from
the
lungs
of
a
rat
into
its
left
toe.

Cellular
respiration
 reduces
the
O2
to
water
(in
the
mitochondria
of
the
rat’s
left
toe)
and
during

CO2
becomes
produced.

Trace
the
 movement
of
a
CO2
molecule
from
the
left
toe
to
the
lungs
of
a
rat.

(Note
that
this
movement
occurs
in
the
 circulatory
system).
Be
sure
to
include
all
four
heart
chambers,
all
the
major
blood
vessels
that
enter
and
leave
 the
heart,
and
all
four
heart
valves—include
correct
names.

 
 
 
 
 
 
 
 
 6.

How
does
the
heart
obtain
its
nutrients
and
oxygen?
(hint:
capillary
beds)
 
 
 
 
 
 
 7.

Outline
the
flow
of
urine
from
the
kidney
to
the
urethra
in
both
a
male
and
a
female
rat.
 
 
 
 
 
 
 
 
 
 
 8.

Name
at
least
two
glands
found
in
the
neck
region
of
a
rat.
 
 A52
–
Fall
2009
 Vertebrate Anatomy Worksheet. Due at the end of lab. N ame G SI & Sec # t Station # Neck region: Draw and label-- parotid, tear, and submaxillary glands, lymph nodes, parotid duct, facial nerve. Combined Respiratory and Circulatory Systems: Draw and label-- lungs, trachea, diaphragm, heartincluding flow of blood : right and left ventricles, aorta, vena cava (look at the heart model). Abdominal cavity: Draw and label—spleen, mesentery, adrenal gland. Label the following parts of the digestive system: esophagus, stomach, liver, pancreas, small intestine (duodenum, jejunum, ileum), large intestine (caecum, rectum, and anus). A53
–
Fall
2009
 Urogenital system of a male rat. Draw and label: kidney, ureter, bladder, penis, scrotum, vas deferens, seminal vesicle, coagulating gland, prostate gland. Urogenital system of a female rat. Draw and label: kidney, ureter, bladder, ovaries, oviduct, uterus. A54
–
Fall
2009
 1.

PHYLUM
CHORDATA
 VERTEBRATE
ANATOMY
 Four
notable
characteristics
of
the
phylum:
 ‐The
presence
of
pharyngeal
gill
clefts
at
some
point
in
development.
 ‐The
presence
of
a
notochord
at
some
point
in
development.
 ‐The
presence
of
a
single,
hollow,
dorsal
nerve
cord.
 ‐Post
anal
tail.
 2.

THE
RAT
DISSECTION
 ‐Use
a
scissors,
not
a
scapel,
to
snip
the
skin
and
muscles.
 ‐Do
not
plunge
the
scissors
deeply
into
either
the
abdominal
or
thoracic
cavities
or
you
will
damage
the
 organs
underneath.

Be
especially
careful
when
cutting
through
the
rib
cage
into
the
region
near
the
heart.
 ‐If
you
cut
the
intestines,
it
may
STINK
considerably.
 ‐Remove
ALL
pins
from
the
rat
when
finished.

Wrap
the
rat
NEATLY
in
a
plastic
bag,
secure
with
2
strips
of
 tape,
and
place
in
the
freezer.
 You
should
be
able
to
define:
dorsal,
ventral,
medial,
distal,
proximal,
lateral,
posterior,
anterior.
 You
should
be
able
to
identify
all
of
the
following
structures.
 External
Features:

 
 
 Head:

External
nares
(“nostrils”),
Vibrissae
(“whiskers”),
Pinnae
(“ears”).
 Oral
Cavity:
Incisors,
hard
and
soft
palate,
tongue
 
 Internal
Features:
(visible
after
dissecting
the
rat).
 Digestive
System ‐Abdominal
cavity
(lined
with
 peritoneum) ‐Pharynx
(vs.
larynx) ‐Esophagus ‐Stomach ‐Small
intestine
(duodenum
&
 jejuno‐ileum) ‐Caecum ‐Liver ‐Submaxillary ‐Parotid ‐No
gall
bladder
in
rats ‐Colon -Pancreas Excretory
System ‐Kidneys ‐Ureters ‐Urinary
bladder ‐Urethra Miscellaneous Structures -Adrenal gland -Mesentery Respiratory
System ‐Pleural
Cavity ‐Trachea
with
cartilaginous
rings ‐Epiglottis ‐Lungs -Diaphragm Immune
System ‐Lymph
nodes ‐Spleen -Thymus Circulatory
System Heart

 









‐
rt.
&
lt.
atria 









‐
rt.
&
lt.
ventricles Pulmonary
veins
&
arteries, Aorta
and
vena
cava Neck
Region Salivary
Glands 




‐Submaxillary 




‐Parotid ‐Lacrymal
glands ‐Lymph
nodes
 ‐Parotid
duct -Facial nerve Mammary
Glands Nipples Salivary
Glands ‐Submaxillary ‐Parotid Reproductive System Male -Testes -Seminiferous tubules (inside of testes) -Coagulating gland -Vas Deference -Seminal vesicles -Prostate gland -Epididymis (cauda and caput) -Preputial gland Female -Ovary -Fallopian tube -Uterus -Preputial gland 3.

REQUIRED
DRAWINGS:
Include
labels.
 A55
–
Fall
2009
 
 Chordata Symmetry Respiratory
system,

pigments
 
 
 
 
 Circulatory
system
 subphylum

vertebrata:
rat
 bilateral 
 
 
 
 
 
 Digestive
system
 
 
 
 
 
 Skeletal
 Coelom cephalization Sexual
reproduction internal,
bone yes,
several
 high
degree,
brain, eggs
&
sperm
,
elaborate
 
 
 
 
 
 
 
 
 none yes,
vertebral
column
 somites(development) 
 
 
 Asexual
 Metamerism Excretory
system
 Metamorphosis Nervous
system germ
layers locomotion other
notes
 none,
direct
development. high
degree,
central
&
peripheral
nervous 3:
 
 
 
 
 
 
 
 
 A56
–
Fall
2009
 ...
View Full Document

This note was uploaded on 02/24/2010 for the course BIO General Bi taught by Professor Mehgian during the Fall '09 term at University of California, Berkeley.

Ask a homework question - tutors are online