Lab 8 Flashcards
Name the bones and their structure in the human arm.
Starting from the shoulder is the humerus, connected to the radius and ulna. The ulna is on the pinky side and the radius is on the thumb side. The small bones that make up the wrist are carpels. The hand bones are metacarpals. The fingers are phalanges.
Name the parts of the heart and the direction of blood flow.
(1) Oxygen-poor blood from the veins is received through the superior (top) and inferior (bottom) vena cavas into the right atrium
(2) flows through the tricuspid valve into the right ventricle
(3) through the pulmonary valve into the pulmonary artery and to the lungs
(4) oxygen-rich blood from the longs flows through pulmonary veins into the left atrium
(5) through the mitral valve into the left ventricle
(6) through the aortic valve and aorta to the rest of the body
Pisaster and Perca are _____yotic, ______trophic, and ______cellular.
Eukaryotic, heterotrophic, and multicellular
The Domain, Kingdom, and subkingdom of Pisaster and Perca are…
Eukarya Animalia Metazoa
What is the phylum and common name of pisaster?
Echinodermata; Starfish/Sea star
What is the symmetry, body plan and digestive system of Pisaster?
Pentaradial, triploblastic coelomate, tubular (complete)
True or false? Starfish are carnivorous.
True
What type of skeleton does Pisaster have?
Endoskeleton of calcareous dermal plates/spines
How is pisaster motile?
Water vascular system with tube feet
What are five adaptations of pisaster?
(1) water vascular system
(2) madreporite (pressure valve)
(3) pedicellariae (cleaning pincher)
(4) 2 stomachs (chemical and physical digestion)
(5) eye spots
What are four friends of Pisaster?
urchins, sea cucumbers, sand dollars, brittle stars
Describe the bodily structure of Pisaster.
How does Pisaster ingest food?
Prey is engulfed by extruding the cardiac stomach
What body part does Pisaster use to complete gas exchange?
tube feet
What is the phylum and common name of Perca?
Chordata; perch
What is the symmetry, body plan, and type of digestive system of Perca?
bilateral; triploblastic coelomate; tubular
What type of skeleton does Perca have?
endoskeleton of cartilage and bone
What are seven adaptations of Perca?
(1) streamlined body
(2) protective scales
(3) mucus coating
(4) advanced cephalisation (senses)
(5) lateral line system (detects movement and pressure change of water)
(6) fins
(7) modified gills
Describe the outer structure of Perca.
Fins: the dorsal fin is along the top, the pelvic fin is on the ventral side and central. The anal fin is ventral and posterior. The pectoral fins are on the side and the caudal fin is the tail.
The lateral line runs along the side of the fish
The operculum covers the gills
Note: don’t forget to label the scales!
Describe the structure of gills.
The gill arch provides the support to hold a number of comb-like structures called gill filaments. Gill filaments extend out horizontally from the gill arches. Gill rakers are bony or cartilaginous processes that project from the gill arch that protect the gills, prevent the escape of the prey and assist in swallowing.
