muscle attachments

Question 1

what does the deltoid attach to inferiorly?

Answer 1

deltoid tuberosity on humerus

Question 2

what does the deltoid attach to anteriorly?

Answer 2

clavicle

Question 3

how do the quadriceps attach to the tibia and to what?

Answer 3

all merge into a tendon that crosses the knee and attaches to the tibial tuberosity

Question 4

how do the 2 posterior leg muscles attach?

Answer 4

merge into the Achilles tendon and attach to the calcaneal tuberosity on the calcaneus