Hirudinea (Leeches) Flashcards
1
Q
Prostomium
A
“head” region of annelids
2
Q
Metameres
A
“body” region of annelids
3
Q
Pygidium
A
new growth region/tail region of annelids
4
Q
Hirudinomorpha apomorphies
A
Posterior sucker, un-segmented, ectoparasitic (outside of host), sensory papillae
5
Q
4 major muscle groups in Hirudinomorpha
A
Circular, Diagonal, Dorsoventral, Longitudinal
6
Q
Modes of Locomotion in Hirudinomorpha
A
Crawling, Swimming
7
Q
Nerves and Senses in Hirudinomorpha
A
Ventral nerve chord, very few neurons but large in size
8
Q
Reproduction in Hirudinomorpha
A
Hermaphrodites, (NOT asexual or regenerative), Internal Reproduction
9
Q
Digestion in Hirudinomorpha
A
Anterior sucker/jaws, rely on symbiotic bacteria (lack digestive enzymes)
10
Q
Medicinal use of Hirudinomorpha
A
Post surgery - anti coagulant
