Gill Male Squid Penis with spermatophores
Gill Penis with spermatophores Funnel or siphon Funnel retractor muscle Gill Penis Sperm duct
Male Squid
Gill or branchial heart Rectum Gill Systemic heart Cecum Spermatophores Sperm duct Caudal aorta Male Squid
Branchial Systemic heart heart Ovary with eggs Cecum Nidamental Gland Gill
Female Squid
Chromatophores (Pigment cells) Funnel retractor muscle Funnel or siphon Accessory Eggs in ovary nidamental gland Nidamental gland
Female Squid Funnel or Medial mantle artery Gill (Branchial) Heart Gill siphon Male Squid
Lateral Systemic Testis Caudal Aorta Stellate Mantle Gill (Branchial) Heart Heart Artery ganglion Medial Gill Systemic Mantle Heart Heart Gill Funnel or Siphon Cecum Artery
Male Squid
Testis Caudal Gill (Branchial) Gill Penis Stellate ganglion Aorta Heart B. E. F. C. Rectum A. D.
G. H. I. J. K. L. Answers
A. Cecum B. Lateral mantle artery C. Medial mantle artery D. Gill (Branchial) heart E. Systemic heart F. Gill G. Testis H. Caudal aorta I. Penis J. Stellate ganglion
1. 2. 3. 4. 5. Answers
1. Funnel or siphon 2. Funnel retractor muscle 3. Gill 4. Nidamental gland 5. Ovary
Note that I removed the right gill (branchial) heart
Left gill (branchial) heart pumps low O2 blood to the gills
Afferent gill blood vessel transports
low O2 blood to from gill heart to gills. Right lateral Gill mantle artery Efferent gill blood vessel transports
high O2 blood to systemic heart.
Caudal Systemic aorta heart Note that I removed the right gill (branchial) heart.
Left gill (bracnhial) heart
Lateral mantle artery
Systemic heart Caudal aorta
Gill Left lateral Left gill (branchial) heart mantle artery
Right lateral Caudal aorta Systemic heart mantle artery Right lateral Systemic heart mantle artery Caudal aorta
Gill Left lateral mantle artery 3. 1. 2.
4.
5.
6. Answers
1. Systemic heart 2. Caudal aorta 3. Right lateral mantle artery 4. Left lateral mantle artery 5. Gill (branchial) heart 6. Gill