Bio Lab practical

perch:
pancreas & liver

perch:
pancreas & liver

supplies digestive juices to the duodenum

sinus venosus

receives blood from several veins and brings blood to the atrium

atrium

receives blood from the sinus venosus and which is then sent to the ventricle

ventricle

receives blood from the atrium and contracts to force blood through the conus arteriosus

conus arteriosus

responsible for regulating blood flow and cardiac function

ventral aorta

receives blood from the heart where it is pumped to branching arteries that supply blood to the gills

dorsal aorta

supplies blood to the abdominal cavity and posterior parts of the body

clam:
anterior and posterior abductor muscles

help keep the valves closed

auricles

oxygenated blood travels to the auricles and then is pumped to the ventricle

ventricle

receives oxygenated blood from the auricles where it is then pumped to the rest of the body

labial palps

direct food toward the mouth

crayfish:
chela abductor muscle

muscle that pulls the claw closed

abdominal flexor muscles

allows the abdomen to flex and curve

hepatopancreas

supplies digestive enzymes to the stomach, and absorbs and stores nutrients after breakdown

gastric mill

chitinous teeth that grind up food that enters the stomach

heart

contracts to move hemolymph through arteries that supply blood to the body

ostia

blood also enters the heart through ostia that widen when the heart relaxes and close when the heart contracts

ophthalmic artery

supplies the anterior regions of the alimentary canal and the head with blood

antennal arteries

bring blood to the stomach, antennae, and other regions of the head

hepatic arteries

supply the hepatopancreas with blood

dorsal abdominal artery

supplies blood to the abdominal muscles and intestine

sternal artery

supplies the appendages and gills with blood

frog:
left atrium

receives oxygenated blood from the pulmocutaneous circuit and then pumps it to the ventricle

right atrium

receives oxygen-poor blood from the systemic circuit and pumps it to the ventricle

ventricle

pumps blood through the pulmocutaneous and systemic circuits

conus arteriosus

directs blood into the correct arterial arches

truncus arteriosus

branches to form the systemic and pulmocutaneous arches

pulmocutaneous arch

divides to bring blood to the lungs and skin

systemic arch

supplies blood to the head and legs

carotoid arch

supplies blood to the head

dorsal aorta

supplies blood to the posterior body regions and the alimentary canal

postcava

gathers oxygen-poor blood from the posterior regions of the body to bring back to the heart

hepatic portal vein

recieves blood from the postcava and supplies blood to the heart

sartorius

flexion at the knee; flexion, abduction, and lateral rotation at the hip

adductor magnus

adduction of the femur

gracious major

flexion and extension of the leg

gracillis minor

adduction of the leg, flexion of the knee

triceps femoris

retracts and hindlimb at the hip and extension at the knee

biceps femoris and semimembranosus

flexion at the knee

gastrocnemius

extension of the foot

tibialis anterior longus

flexion of the foot