あか (垢) 'grime / body dirt' is specific to unwashed skin. だらけ is the suffix for 'covered in / full of.' 満足に 'satisfactorily / properly' is a na-adjective used adverbially. 与えられていない is the passive-progressive-negative — 'is not being given.' 様子でした 'it appeared / seemed' wraps the observation as external appearance. A neglect-description sentence.